Chew Valley is well-known for its picturesque splendor as well as excellent fly fishing. The size and quality of the trout taken here are unrivaled, and fishermen have success utilizing a broad range of fishing tactics and fly patterns, making it a favorite competition location.

The lake is rather shallow, with top-level average depths of just 14 feet and a maximum depth of about 37 feet. Its surrounding region, which was previously lush farmland, is now fertile terrain for the aquatic species required to support outstanding trout fishing.

The lake has a history of producing mature fish, with lake records of 22lb 7 oz for brown trout and 14lb 9 oz for rainbow trout.

The deepest areas of the lake are situated between the dam and the outflow tower, where the steeply sloping coastlines of Walley Bank and the North Shore allow bank fishermen to reach depths of up to 20 feet. South of Herriots End, where the Upper River Chew joins the lake, the water becomes gradually shallower.

Boat rentals are also available; however, early reservations are recommended, particularly on weekends, since they are only taken on a two-rod basis. Boats that have not been booked in advance will be offered on the day on a first come, first served basis.