We live in their habitat, we want them there because of the great stuff they do. Most of them are harmless tropical snakes, but the other occupants of my house just wont come to the farm because of them. So I have been wondering..... There is this lake I am almost digging out, Would an Island keep off snakes? (Ill deal with crocs that get pumped into the system as eggs or tadpoles or whatever they are at that tender age and then mature and grow into apex predators in the lake later). If my house is surrounded by water, would it help? Has anyone tried this? would it keep the green mambas, the black mambas and the african Rock pythons. (Ive seen a 12 foot long one swallowing a dikdik).