A Grass Snake is a long, thin snake which is usually green in colour, with darker patches on its body.
They are often mistaken for a venomous adder because of their green skin and brown spots. However they have two tiny holes by their mouth instead of the deep pit that most poisonous snakes have.
A Grass Snake is not dangerous to humans - it is harmless. They are pretty slow moving creatures so they are unlikely to attack you. If they feel under threat or frightened though, they may flatten themselves out into a zigzag shape before quickly slithering away!
Grass Snakes are very good swimmers and like all reptiles they need to warm up in the sun before they can move about properly ( cannot regulate their own temperature like mammals do ). When they feel tired, Grass Snakes like to hide away in underground burrows or cracks where it is cool and dry. They also like to bask in the warm sun ( again, not like mammals ).
Grass Snakes usually live near water, so you are likely to find them by rivers or ponds . You can also spot them basking on rocks or fallen trees after the sun comes up. They only need a small home - maybe somewhere with room for an entrance hole and some space around it for them to curl up. If there is lots of debris then that would be perfect too!