Reisbach Weiher (Vilstal Reservoir)

Reisbach Weiher (Vilstal Reservoir) is a small inland reservoir in Lower Bavaria with generally flat-to-choppy conditions and very shallow water near shore. The riding area is predominantly muddy, and the southeast corner provides a spacious grassy launch/rigging zone with convenient parking. Wind is most reliably found from westerly directions (SW through NW) and is commonly strongest in spring and autumn—especially March to May and September to November. One source also mentions a possible summer east-wind/thermal contribution, while the regional baseline and another provider describe the spot as mainly driven by frontal/low-pressure weather systems with no significant thermal wind component; either way, calm summer periods can occur unless a front passes. Safety is a major consideration. The western part of the lake is a strictly protected nature reserve where water sports are prohibited, and sources also warn about a potentially dangerous undercurrent near the power plant. Additionally, sailboats share the water, so riders should actively watch for traffic. Shallow banks and shoreline features can further limit safe lines and increase the risk during mistakes or crowded periods. For sports, the lake is especially well regarded for windsurfing beginners due to the large standing area and forgiving shallow entry. Kitesurfing is possible but can be demanding because of the small size of the lake, shallow/muddy bottom, and nearby trees and swimmers in high season; wingfoiling is possible but limited by how far you must walk out from the shore before the foil can be engaged safely.