Walchensee and Starnberger See make a complementary freshwater trip rather than a tropical dive holiday. Walchensee is the more dramatic underwater landscape, with steep rock, scree, overhangs, an underwater forest, and small wreck objects at named shore sites such as Galerie, Pioniertafel, Hackl, and Steinbruch. Starnberger See adds accessible training areas, dark wall diving near Allmannshausen, broad bathing lawns, passenger boats, cycling, and easy rail links from Munich. Both lakes demand disciplined cold-water preparation, conservative depth choices, local rule checks, and respect for fish and wintering-bird protection zones. This is a local-only destination: divers stay ashore, drive or use rail and bus connections, and dive with clubs, schools, or shore teams. Mixed groups work especially well because Herzogstand, Roseninsel, museums, cruises, and lakeside paths can fill the same day as a dive.