Just snapped this picture of a common toad in a hole in the trunk of an apple tree, about 1m from the ground (sorry for the picture, I took it on my phone)
Seems like they climb more oftern then you think. Here is a topic from the Reptiles & Amphibians of the UK forum
http://www.herpetofauna.co.uk/forum/forum_posts.asp?TID=2850&PN=1
Edit...
I came back in the morning to try and find it again and it wasn't in his hole, but climbing around on the ivy attached to the tree even higher up