Holl Reservoir is a reservoir and fishery managed by the East of Scotland Water Authority, supplying water to Kirkcaldy, Glenrothes and North Fife. It has a maximum depth of 14 m (46 ft), with an average depth of around 6m (19.8 ft). It gives the impression of wilderness, with unusual and significant plant species a feature of the area. Reeds grow on the western and northern sides, and to the east, native trees and bushes overhang into the water.
Holl Reservoir provides high-quality fly fishing for brown and rainbow trout. There are twelve boats available for hire and bank fishing is also permitted. Trout fishing season runs from 15th March to 6th October in Scotland, but the best period is from June to September.