The real Snake Island (also known as Ilha da Queimada Grande) is 21 miles of the coast of Brazil, not a stop along a river.
Snake Island is the only home of the endangered golden lancehead pit viper.
The Honduran milk snake and the rough green snake are not venomous.
(at around 54 mins) When the Honduran milk snake is trying to attack Lisa, the close up shows Cobra.
When Lloyd's dead, him jugular vein is pulsating.
Throughout the movie, you can see hands holding the plastic heads of snakes throughout the tall grass.
In some shots there are hands visible when the snakes are thrown off the cliffs.
In some shots there are hands visible when the snakes are thrown off the cliffs.
There are no Honduran milk snakes in South Africa.
There are no rough green snakes in South Africa.