Never been really into kites myself, but this gives a few clues...
Welcome | Bristol International Kite Festival
As does this
4-Line Traction Kites - Power Kites - Kites - The Kite Shop
Looks a lot of fun for a too-windy or crap-viz day.
Now model rocketry on the other hand, I used to have a heck of a lot of fun with...
UKRA - United Kingdom Rocketry Association
G