[TOMT] [SHOW/SHORT] [Early 2000s or earlier] A show or short about a British Bear who made a paper boat and a raft

I had a large collection of DVD’s as a kid that I’d watch a lot around 2009ish. One episode of a show I can’t remember the name of featured a bear (possibly another animal?) who was British. The episode starts with the animal making a paper boat and floating down a river. Then him (and I think his friends?) made a raft with logs and rope and sailed down the river on it. Towards the end of the episode it sank. IT IS IMPORTANT TO NOTE that the style looked almost water colored, with everything other than the characters and the things they interact with like the raft and river are all blank. Only the focus of the episode was in color. The episode couldn’t have been very long in length and I remember watching other episodes but I cannot for the life of me remember what happened in any of them. The CD collection was thrown away sometime in 2014. Also I live in the U.S. if that helps at all.