Corrected entry: When Tom Hanks is on top of the island and he sees the dead body, look at the water level. It's very low and the body isn't floating at all. But when Tom Hanks is down with the body it's floating and the water level is much higher.
Hamax
18th Nov 2002
Correction: It would have taken him some time to get down from the top of the island, and in the mean time the tide would have come in. This would explain why the water level is much higher and why the body floats.
Hamax