"My name is Bear Grylls. climbed to the summit of Everest and crossedNthe icy seas of the Arctic." "I go to one of the volcanoesNmore active in the world." "The Kilauea in Hawaii." "MillionsNcome to see the lava and every yearNfifty lost." "I'll show you how to survive." "I'm in the middle of the Pacific Ocean going to an island in Hawaii where Mount KilaueaNhas been active since 1983." "Every year 2 million people come see these lava fascinatedNwith the brightness of the magma." "But it is easy to get lost or hurt.Nthis sterile environment and dangerous." "I put myself in positionNa tourist lost here to show you how to survive." "a knife and a flint." "In a few minutesNthe pilot will leave me in the volcano" "We are in mid-afternoon and in a few hoursNgoes dark." "A film crewNwill accompany me." "The land down thereNis very unstable to land so I'm downNby a rope." "I'm about to dockNan inactive crater slopesNhighest volcano." "Look at this." "It's so intimidating." "This volcano is incredibly dangerous." "A fewNmeters below me is a lava lakeNtemperatures above 1000 degrees celsius while the soil release a strong odorNof volcanic gases." "I findNa way out of here and return to civilization." "But what willNthe best way?" "I'll put on the craterNto guide me." "Just look at this." "It's likeNlanded on the surface of an alien planet." "The landscape is aridNand deeply threatening." "It is easy to see whyNpeople get lost here." "It's just miles and kmNof land with nothing." "I can already tellNthis will be a nightmare around here." "If you get lost here try to findNa path to the sea since it is near the seaNmost Hawaiians live." "What I know is that this volcanoNlies to the south of the island and that the best hypothesisNfind civilization is to go toward the sea." "the shore areaNnearest is in the south." "I will use the sun as a compass." "It is late afternoonNand the sun is to the west means that SouthNbe here." "The island has more or lessN130 km length and width which means that the seaNshould not be more than 65 km." "But this unstable ground floorNis incredibly difficult." "the majority of accidents happenNbecause people slip or fall." "If you slip hereNcan easily break a leg." "None tourist died here gave eventually fall into the ocean." "Even for the more experiencedNcan take an hour just to go 1 km." "SulfurNis generated by volcanoes and here is extremely thick." "Look here.NYou can see the sulfur out of these holes." "And this is a sign that INon top of a lava flow." "At about one meterNunder me." "Volcanologists measureNthese gas emissions trying to see if a volcanoNwill erupt." "I have to go." "This sulfurNhave an intense smell even and gettingNvery unpleasant." "It has an intense bitter tasteNand entering in my throat." "And it is not pleasant." "Nthis gas can kill." "Few years agoNa helicopter crash for 3 days." "Only survived becauseNused the shirts as masks." "that's what I'll do." "I can hardly breathe." "This is difficult." "Nfull of that thing absolutely horrible." "Nbut from here the air seems much cleaner." "But I need a few minutesNto catch his breath." "I have already exceeded the sulfur but the gases are a signNthat the lava is near the surface." "This whole area is gettingNnow extremely hot." "And I'm always watchingNSmall cracks going toward the lava lakeNhere below." "In these holes in surfaceNgive the name of "skylights"." "Nare lava circulating tunnelsNknown as "lava tubes"." "The temperature down thereNis around 1000 degrees." "If the thin crust cedeNwould be incinerated in seconds." "But there is aNcircumvent an area like this and that is how it's done." "Very lightNtest with the boots and if the boot meltNsay that is too hot so we can go through." "I'll now try to cross." "But the film crewNwill be here waiting if we tried togetherNthe crust would probably give." "Here we go." "My boots started to melt.NIt's too hot." "What we see is ifNthe rock begins to soften and if that happensNand our feet start to sink we must go backNand try to work around." "I managed to pass." "This rock is is less hot." "after that." "I already went through the hottest partNthe lava field." "But I still have to findNfood and water." "Nthe only question is where." "The temperature of the volcanoNis overwhelming." "Dehydration is a great dangerNtourists lost these lava fields ruthless." "without having something to drink." "'m GettingNa little worried." "I'm already running out of water." "I know we spend three daysNwithout it I have difficultyNendure in one day." "The volcano receives aboutN300 cm of rain per year." "But the lava is so powerfulNmost end up dry and the little water that isNsurface quickly evaporatesNin heat over 30 degrees." "Most of the rain that fallsNwith the active crater of the volcano become contaminatedNwith the sulfur gases transforming itNin acid rain." "Nvery few plants grow." "Once I move awayNthe volcano crater begin to see moreNmore plants." "The lava fields of KilaueaNwere once covered by a lush forest" "Nstays here." "These here are called "kapuka." "They range from small areasNvegetation up huge areas of jungle." "But is there that I will have better chancesNfind food and water." "One of the difficultiesNall this volcanic area is that there areNrivers or streams or lakes." "But the best chanceNfind water will be here in the jungleNor a hole or a cave." "But it will be difficult to findNwhatever this vegetation so dense." "Look at this.NLook." "Avocados." "And this is an avocado." "And this is good news for me.NI love avocados." "I'll see if I canNcatch some." "Avocados grow onNtopmost branches of the tree protect fruitNpossible predators." "I can useNsome of these vines to get up there." "just a little longer." "And this is what I want." "I'm so hungryNI'll eat them right here." "I will not wait until fall." "I'm trying to positionNto take the knife." "Now just take this bark." "Avocados are oneNbest foods nature." "Nprotein and good fat." "This is wonderful.NI just love avocados." "If ever ..." "Nwere lost on a desert island this would be one of the thingsNI would take with me." "and mayonnaise   and chocolate." "Nit's time to go." "I'm going toward the coastNbecause that's where you find people." "I want to get thereNas soon as possible." "Not want to spend the nightNin this jungle." "This was a gift." "I will save one for later." "But have not found water." "this volcano before being rescued." "He kept himself alive by suckingNwater bits of moss." "But what I wantNis water." "The water of a lakeNbe stagnant water." "And stagnant waterNis the ideal place for bacteria or may be contaminatedNby animal feces." "Until I see something I canNlead to safe drinking water." "Look at this.NThis is an old lava tube." "the lavaNwent through this area on their journey to the sea." "Hawaii is fullNof ancient lava tubes." "TunnelsNthat once transported the lava of the volcano to the sea." "For me it is a placeNwhere water can accumulate." "Where I am long goneNthe top of the lava tube." "Ncreating this huge hole." "It is here that I enter." "But it seems to be atNforty feet." "but into find a way to fall." "I put myself in the positionNa lost tourist on Mount Kilauea in Hawaii to showNhow to survive and get out." "I'm trying to get an oldNlava tube to find water." "It's just the fallNwith about a dozen meters." "These trees hereNcalled "ahea." "And what happens is thatNthey grow here on the edge" "And the roots of theseNeven grow down there." "They are looking for waterNand humidity." "NI can use them to descend." "But they are all coveredNby this layer of moss what makes thisNa bit slippery." "Older lava tubes like thisNmay prove hazardous locations." "RecentlyNan American Fireman survived a fall of 30 metersNa tube near here an operationNrescue." "What is difficult hereNis to see the roots that are dead" "and those that are alive." "We have to test them first before we put themNall our weight." "This is so slippery." "It's so difficult to cling to." "'m ThirstyNbut I know I should not drink the first water meet." "There is much moisture in this cave." "But the water itselfNmay be contaminated because oftenNanimals fall in these holes eventually die." "What I want is to find waterNthe bottom of this tunnel where I am sureNit is clean." "But before going further into need to make a torch." "The nuts of the walnut-chestnutNare rich in vegetable oil and burn easily." "Here is the veryNwalnut-chestnut." "and walnuts should be hereNsomewhere." "Native HawaiiansNcall "candlenuts using them to illuminateNtheir homes." "That the need to do isNopen this locust a stone these give them a round and this is what I want.NEven the nut." "N'll stick the nuts on sharp sticks." "Green wood works bestNsince it does not burn as fast." "What do I do nowNis perforate them with these sticks and make a kind of ..." "NSkewer nuts that will burn slowly." "What you do is turnNfirst the top then go burningNupwards." "And eachNshould take about 5 minutes." "Nif you put five on a stick" "I almostNhalf hour of light in these tubes." "One is already." "And this small flameNhas another purpose that can save your life." "This will do more thanNgive me light in the lava tube." "What will also makeNto alert me about the levels carbon dioxide inside.NIt will work a bit like a canary in a mine." "One of the gases emitted by the volcanoNis carbon dioxide." "odorlessNand in large quantities is fatal." "If I go through an air pocketNcarbon dioxide the light goes off and that meansNI need to leave quickly." "I choke." "Carbon dioxideNis not the only danger here." "I am 12 metersNUnderfloor" "Nthere may be a landslide." "Nthe safest way to walk preciselyNalong the walls of the cave." "the lavaNcirculated throughout the area." "You can see thatNit was so hot here" "Nalmost like ceramic." "There's another holeNwhere the rock should have given as the hole through which I entered." "But there is no water hereNI can drink." "we must continueNto walk over there." "Just look at this.NYou can see that these roots are growing up thereNand it is full of moisture." "Should be sufficient to fillNcompletely my canteen." "RainwaterNmanaged to pass through the cracks the top of the lava tube." "And now it's falling from the roots." "The most important is that this waterNis filtered and is clean and is so good that probablyNto be good to be bottled and soldNin any restaurant." "All you need to doNis filled." "Can not wait to drink it." "Is already full." "This water is so pure.NTrue volcanic water." "Is timeNback to the surface." "hear." "I have no ideaNwhat was that but it is better we leave here." "These ancient lava tubesNare dangerous places." "It's time to get out of hereNfast." "I'm an old lava tubeNfor water." "I found only one problem." "The noise came from here." "I am sure thatNthese stones were not here" "I entered." "That's why these placesNare so dangerous." "Look." "I want out of this tunnelNsoon as possible." "The nearest exitNis the hole that I saw" "I entered." "That is where we'll go before there is anotherNcollapse." "This is the hole where INwhen he was down." "But the rock is almost vertical." "Climb this is almost impossibleNwithout the proper equipment and I have none." "But there is a way." "The roots of a walnut-chestnutNdown the hole below." "I can use themNto try to get out of here but this will be ..." "Nwill be slippery and I hope thatNhelp me out here." "into continue my path." "I'm trying to reach the coastNbut it is not easy." "This sun noonNextremely hot and as is still so highNis very difficult to follow leads especially in these forestsNwith trees so tall." "'m FeelingNquite claustrophobic here." "I just want to findNnow an area without trees." "When you find a clearingNI can well see the sun can use the shadowNthe sun to see the direction." "But in this denseNthis is impossible." "I see a clearing." "Now be much easierNsee the way forward." "But there is a problem." "I can no longer useNthe sun as a compass." "The sun is nowNshrouded in clouds which means thatNI can not use it to guide me." "But what can I doNis to use the wind." "The winds of the PacificNblow in the same direction." "Is why the sailorsNgave them that name." "The trade winds blowNalmost always from the northeast." "Nif you feel this side and I turn to that sideNthis leads me to south to the coast." "the tropicsNnight falls very fast especiallyNforests like this." "I findNshelter before dark." "One of the easiest shelterNand faster to build" "Nis a shelter supported." "I need a groundNno vegetation." "One of the most importantNto make a shelter is to have a good location." "It seems that there's a clearing.NLet's see." "this siteNis not very good." "You can see clearlyNthat something happened here." "In truth must be ..." "Nbe a wild boar." "Boars areNextremely dangerous." "They have sharp clawsNand defend their territory at all costs." "I have to lookNelsewhere." "Look here.NHere will be excellent." "The nature hereNdid all the work for me." "there are no spidersNor poisonous snakes" "Nleeches and mosquitoes." "And I do not want to shareNmy bed with any of them." "Before building the roofNneed to make the bed." "This dead vegetationNwill take to make a good mattress." "And although the roofNkeeps me dry is what keeps me warm." "Is the floor that is lostNmost of the heat of our body." "now INstart building the structure." "These giant ferns willNprovide a perfect cover." "By making first the bottomNbuilding and go up any rain that fallsNgoing down the sides not through the roof." "I'll only end up with these hereNand this will prevent falling rainNthat even now started to fall." "And this is one of the rare situationsNthat the timing of rain is actually perfect." "What I need nowNis to find wood for the fire." "Have a fireNis very important." "Not only to heatNbut also to ward off insects." "The mosquitoes of the jungleNare relentless." "Smoke distanceNwill keep them at bay." "Nfor some time." "The rain eventuallyNerasing my fire." "It was not very smartNmy part let happenNbut I fell asleep for half an hour and this means that nowNmosquitoes are indulging me" "I'm justNto be eaten alive here." "Not tonightNwill be very nice." "And to be honest ... just want to go home." "It is morning on Mount Kilauea." "My feetNare suffering." "I have to have bubblesNcrossed the lava fields." "But I have to keep moving." "Listen." "Listen." "Are bees." "somewhere." "And if I can findNthe hive and get to the honey would be great." "Honey is full of sugarsNas glucose and fructose which I will veryNenergy to continue." "Look.NAre there." "Look." "Look there.NCan you see them here completely crazyNaround that tree." "Many of the beehives of HawaiiNwere colonized by African bees." "And these are much more aggressiveNthan native species." "If they are African bees it means big trouble." "do not like itNnone of this." "This would be   would certainly choppedNeverywhere if I tried to grab it." "I need another planNto achieve that honey." "The bestNto calm angry bees is with smoke" "And that's how it's done." "This is what I am looking." "These leaves of Monstera." "What I do isNtake two of these sheets will also takeNa pile of dry grass here" "OkNWhat I want to do with it is to put it up here thisNand wrap it tight" "wrap it ..." "NI do a sort of mask." "I will use thisNshirt again mouth or ears." "Ok" "This is already doneNto be lit." "Now just pullNabove this up down here." "By squeezing it wellN'm limiting the amount of air reaching the branches." "make smokeNbut it will create flame." "I needNbring the smoke trying to calm them a bit." "The smell of smokeNcauses them to return to the hive voraciously feeding on the honey." "Nthey become calmer and I get lessNlikely to be bitten." "OkNI think it is good." "Got it.NExcellent." "The best honeyNis that it never goes bad." "Even when they foundNthe pyramids everything hadNto do was re-heat it and is againNgood to eat." "It's so pure." "Thanks bees." "Honey gave meNa great deal of energy to continue walking." "The coast should no longerNbe far away." "Look guys.NA clearing." "Was convincedNthat after this clearing would see the coast and the sea and aNbeautiful Hawaiian beach with palm trees." "it is only this." "It is so discouraging" "NI'm exhausted by the volcano." "I get out of here and fast." "I'm going southNseaward where I hope to meet people." "The ocean can no longerNbe several kilometers away." "Nis a huge lava field and cross itNwill be painfully slow." "The lava solidifiesNin different ways." "This part was formedNwhen hot ash fell on the side of the volcano." "Cooled quicklyNforming these rocks extremely sharp." "I need another plan." "I'll be torn to pieces trying to walk here." "I'll take the shoesNand see if I can use half as gloves." "Without any protectionNnot much will be left of me when leavingNthis lava field." "Maybe this will help meNto use them as gloves." "You can see how this is sharp." "Look at this." "Ripping them only to do this." "That's why I needNof protection." "Thank God." "It was horrible." "I will say one thing.NI have seen many wild land but this must be the worst of all." "In the sky above meNis the first clue that tells me that the oceanNis not far away." "Look.NThese birds are Koa'e kea." "It's a good sign.NThey are sea birds and this means thatNI'm near the coast." "The birds are flying highNmeans that are the way to the seaNto feed themselves." "All you need to doNis to follow them." "But the path is blockedNby a major rift." "These cracks are causedNthe numerous earthquakes that plague the region." "Others are old lava tubesNthat gave completely." "Look at this.NLook." "You can see where the lavaNdropped by this loophole." "Just imagine the temperaturesNneeded to melt this rock." "Going through these cracks fragileNcan be dangerous." "But there is a way to do it." "Sometimes there are these kind ofNbridges lava similarlyNwe see snow bridges over cracks in the ice." "But to be veryNcare through them because no one knowsNthat is solid and what is hollow underneath." "This gap hereNis quite large." "ProbablyNwas formed by an earthquake but I getNa way to cross it as I speak to there.NBut it is impossible" "I can skip this." "Nor look for another bridge of lava or I'll have to go downNand then go up the other side." "I think I'll getNthis bit down here." "Hawaii is one of the regions of the planetNmore seismic activity." "instead of beingNcaused by the movement plate tectonicsNare caused by magma that will run inside the volcano." "There are at least 20 earthquakesNday on this island." "And the earthquakes not only openNcracks as well as the close." "I do notNtake me much here." "It seems that I see thereNa way out of this slot." "The walls of this cleftNare formed by volcanic ash that does notNalmost no grip." "It is essential that I testNeach hole where I put my feet." "and this is what I was looking for." "The sea." "And that huge cloud of smokeNis where the lava on which I have been flows to the seaNcreating this huge cloud." "I have reached the seaNbut this is a very dangerous place." "Those clouds are acid chlorides that form whenNhot lava reaches the sea." "They are highly corrosiveNand if I breathe are fatal." "All this siteNsmells like a chemistry lab that anythingNnot run any better." "The coast is fullNsmall towns and" "Nwill quickly find people." "But it is important to make sureNthe safest way." "Nseems that would find" "Nso I'll try to go here." "A lava flowNdrain into the sea is simply spectacular." "But I have to keepNthe greatest possible distance." "Until meetingNwhich was looking for." "Look.NIs there a building and some trucks." "And it's such a reliefNback to see signs of civilization." "I leave nowNwith great respect the power of natureNand this volcano." "this isNone of the most extreme terrain where it was.NBut for me is more than timeNto go home." "My travelNis almost over." "There are very few placesNwhere we have contact with natural forcesNthat form our planet." "And certainlyNthat leaves me a huge sense of admiration."