As Miss V has previously informed me, tree snakes come from trees.
Apparently, they also like to sun bake on bridges.
This little guy (or girl) has become a regular fixture on the bridge over our pond.
When he first appeared in our lounge room I got too much of a fright to truly appreciate him, but now that I know where to expect him I think he's actually quite cute!
As far as snakes go, anyway.