Grimnitzsee (Schorfheide)

Grimnitzsee (Schorfheide–Joachimsthal) is an inland freshwater lake used for wind and water sports near Joachimsthal, set inside the Schorfheide–Chorin Biosphere Reserve. The water is reported as clean with a protected character that supports flat-water style sessions, and there is typically a shallow entry near the shore before deeper water further out. Wind at the lake is described as primarily gradient and driven by passing weather fronts, with prevailing directions from the west through south-west and north-west. Reported wind ranges vary by source (one source cites roughly 17–33 knots; another describes 10–22 knots), and gustiness is generally moderate. Because the wind depends on front passage, conditions are often most consistent in spring and autumn, especially when a strong Westerly front is moving through. For windsurfing, the spot is described as a safe environment for freeriding and for practicing and learning maneuvers, including foil progression depending on conditions and depth. One source also identifies a possible intermediate-level windsurfing scene, with sail-size guidance provided for the wind range. For wingfoiling, deeper parts of the lake are described as workable, but launch may require walking out past shallow reed zones; foil-friendliness is therefore reported as limited compared with more consistently deep lakes. Safety-wise, expect hazards around the shore such as reed beds, stones near the entry, and seasonal swimming activity. Summer restrictions include avoiding designated swimming areas, and motorized access is restricted. Kitesurfing is specifically flagged by one source as prohibited in this protected nature area, so any kite plans should be confirmed locally before launch. Rescue and lifeguards are reported as limited/seasonal, so riders should rely on conservative planning and avoid getting caught in restricted swim zones.