Gibbi Birthday Weekend

We're having a get together for Gibbi's birthday. The plan is to have an informal weekend celebrating this legend with opportunities to do the best activity to suit the weather, and aspirations of all who attend. We know Gibbi will be keen to do something!
All meals and specialist kit is provided. The centre is not a hotel so only Steve, a chef and I (Dobbo) will be working so please be prepared to help out domestically!
We're pricing the weekend as a B&B including Friday evening meal, breakfast, lunch & evening meal Saturday, breakfast and packed lunch Sunday.
Arrival time is anywhere after 5pm Friday. Departure no later than 4pm Sunday.
Rooms will be allocated on a first come first serve basis and may involve some sharing. All bedding provided. There's no bunk beds!
Evenings will no doubt involve some self provided refreshments and lots of reminiscing!