Grafham has about 100 cats in the dinghy park. Catamarans are grouped into Fast/Asymmetric and Slow handicap fleets, with the dividing line being a SCHRS of 113.5. The Fast/Asymmetric fleets sail upwind/downwind courses. It is a very friendly fleet with a wide range of abilities from beginners to national champions. Our large lake makes Grafham an ideal venue for cat sailing and we host the prestigious end of season Grafham Cat open in mid-October.