Death Mountain Trail can be very dangerous to travel if you don't keep your eyes open for danger. You will come across Red Tektite's , Rolling Gorons, and Giant Boulders! Head up the trail until you find some boulders and a sign. This is Dodongo's Cavern. Continue up the trail avoiding the boulders and a Goron rolling around. You will come to a "fork in the road" where you can either head up to the summit or you can go to Goron City.