Bamboo raft on the River Kwai by Fudge
One of the best ways to get around Kanchanaburi (jungle) was on the river, by bamboo rafts. Adaptable, light, comfortable pace, it was most suitable to take it in and yet arrive at your next village in a rather unusual way -- by river.
Most tour operators have access to bamboo rafts which are fun to be on. You can even make your own raft, as the bamboos are easily available. U do need to have some skill in manouvering though, as at times, the currents in the river tend to tacitly push you in a certain direction.
So good to have a local guy with you if it's your first time.