There are quite a few lakes to ride over here however you will find they are very small compared to most of the lakes in the States. The pics of Lee were taken at my local lake, "Queenford lake" near Oxford which hosted a round of the British Championships last weekend. We even have a stand up only lake, "Six Hills" near Leicester and plenty of others, it all depends what part of the country you move to.
If you end up in Scotland you have Loch Lomond of course which is a lot bigger but very cold.
Chris.