To book a place phone 01480 810 521. It’s also possible to book online at the Grafham Water Centre website. Places are limited and so early booking might be a good idea. The cost for the standard weekend is £205.00 per person. Or there’s a reduced rate if you stay in a local B&B. There is B&B accommodation within walking distance.
Please note that the accommodation is somewhat basic and there are limited single rooms (so if you want one, you might want to book early).