we sent him to trek in the jungles near phuket. and everything was going just fine until he got lost. this barefoot explorer is survival expert dave williams. four years he has been teaching trekkers basic survival skills that could mean the difference between life and death. dave, i am lost and i need your help. what is the first thing i should do? just relax. it's not that big a deal, you cannot be that lost. i have a mobile phone but the battery is very low. one bar left and hardly any signal. what are my priorities, do i use it now or do i save it? we have one hour of light and one bar, i would wait. the chance of us getting rescued now are pretty slim. let's accept our fate, enjoy the night. we have a a night in thejungle to spend. let's do this and then tomorrow we will figure out, we will walk around a little bit, find two bars and make the call. dave's most important tip