sentences:  And the ice is thick enough to walk on, snowmobile on, and even drive vehicles on, from mid-December to early March.During this winter season, snowmobile riding and ice fishing are primary recreations on the lake, while the surrounding park has facilities for both downhill and cross country skiing.Approximately 80 cm of snow accumulates in the area through the winter, slowly building depth until it begins to actively melt in spring, usually from early March through to early April.