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4) The random rainbow pond.
The group sees a glimmering pond of every imaginable color on the other side of the guard rail, just as the zeppelin blows up the truck. They dive in unharmed as the flaming truck goes in slow motion. They laugh after nearly escaping death for the millionth time today. However the celebration is short lived as the stench becomes apparent that the pond isn't actually rainbow, but the oil that seeped to the top apparently is. You're all about to burn to death as soon as the truck hits the water, what should you do?
1) Dive underwater and look for random caves
2) Signal the speedboat.
3) Climb the cliffs back up.
4) Use the sea monster whistle.