And has no doubt helped in maintaining relatively high levels over the past few years. These higher water levels during spring flood large areas of grasslands adding worms, grubs, frogs, beetles, and spiders to the fish's already substantial diet. It is little wonder that many fish last year ranged from 1 to 2 kilos in weight. The lake is a delightful fishery. The water is crystal clear, and surrounded by towering eucalyts which in many areas plunge straight into the water creating the appearance of an underwater forest.
Most bays are shallow and sheltered with emergent weeds and shallow grassy foreshores.
The lake is synonymous with its mayfly hatches but there are many other significant hatches and exciting fishing opportunities. The importance of the small aquatic insect called a mayfly to Tasmanian fly-fishermen cannot be over emphasized. Summer mayfly hatches in the Central Highlands are the most eagerly awaited and anticipated event in the Tasmanian trout-fishing calendar. Arthur's Lake and Little Pine Lagoon are the leading waters and both are well known for their mayfly hatches. The hatches on these lakes are as good as any stillwater fishery anywhere in the world today.