Jezioro Hańcza – Błaskowizna (parking 1–3)
Lake Hańcza is Poland's deepest lake (108.5 m), and almost all diving starts from three parking areas on private land near Błaskowizna on the east shore. Parking 1 ('jedynka') is the most popular, with easy entry, a clay wall at roughly 10–40 m and old dugout fishing boats at about 38–40 m. Parking 2 ('dwójka') is reached by a steep 20 m path to a wooden footbridge and gives quick access to rocky walls at about 26–40 m, which are especially lively at night. Parking 3 ('trójka') is the easiest and quietest, with training platforms, a bison figure, a boat and a chest, so it is the usual course site. The bottom drops at about 12°, visibility is usually 4–8 m, and below the thermocline the water stays at a few degrees all year.
depth: 0–40 m