For a snake pit i dont really think it would be a good idea the could get out you could have a granny flat or sumthing out back that u could turn into a snake room just make shure the snakes CANNOT get out you could use a above ground pool and take the bottom out or an old water tank i have my old chook pen im converting it into a lizard pen for my water dragons im gonna put a pond in it has a concrete floor so i will just buy some fake grass lay it over then put logs branches ect over it when i want to clean it just take out the fake grass bring down the hose and a bucket of water and srub away its very easy and keeps it clean!!!