Swamp buggy engine start and idle
Swamp buggy pass by with an engine stutter
Swamp jeep engine rev and drive off
Swamp buggy pass by, slow down and speed up
Jungle ambience - Thunder rumble, wind through trees and rushing water, bird & insect calls
Echoing bird calls, heavy cricket chirrups, strange insect &/or foliage rattle, reverberant running water
Jungle ambience - heavy surging insects, various frogs - calls back and forth and croaking, with night birds
Heavy rain fall in jungle, insistent bird call, frogs croaking. A synthesized sound effect.