The wild brown trout fishing in the river is superb, testing your skill to the upmost. Brown trout running to over 3lbs, but avarage around 1lbs. The lake is stocked regulary with top fighting rainbow trout. There are not many (if any) places around north london (Hertfordshire) with this sort of fly-fishing. Try it out if you like this sort of thing, you wont be dissapointed.....