オルジンゲンネンジンゲンの湖・トップ20

The Aachquelle is the largest spring in Germany.

Shady spot with a small kiosk. Ideal for taking a break. 😉

Great views on the bike path towards Lake Constance. But unfortunately the bike / hiking trail is a bit narrow.

Just great at the spring, I had never seen so much water straight from the ground.

Radolfzell should not be missed. Beautiful, old, small old town with the centrally located cathedral, a small but fine museum, a wide range of gastronomic offerings, the beach promenade directly at the train station, the Mettnau peninsula with a nature reserve, the outdoor swimming pool, pier for the solar ferry, a boat rental not only with rowing and Treboating, I really liked a kayak, you can rent SUP boards a little way towards Moos ... and last but not least, the town is the perfect starting point for bike tours, and you can always easily get back by train.

A detour that is worthwhile. Don't forget the beautiful old town with church and market square and the promenade by the lake!

Most of the water 🌊 escaping in the Aachtopf comes from the infiltration points of the Danube at the weir and in Brühl near Immendingen and Fridingen on the Danube. The Aachtopf 🌊 is the most heavily pouring karst spring in Germany with an average discharge of around 8000 l / s (min. 1310 l / s, max. 24 100 l / s) and a catchment area of around 280 km2. On its underground path, the water dissolves some 1000 m3 of limestone every year. To the north of the source pot, banked limestones of the lying bank limestone formation (formerly Weißjura zeta 1) and massive limestones of the upper mass limestone above. From the outflow of the spring, divers first came 17 m deep, then diagonally to the north into a water cave 1–3 m wide, 3–6 m high and over 500 m long. About 500 m north of the source of the Aach there are several large subsidence. Two approx. 20 m deep sinkholes with diameters over 40 m are sunk into the layers of rough limestone within the cement marl formation (formerly Weißjura zeta 2); the limestones are clearly visible on the walls of the sinkholes. Their formation is probably related to the karstification and lime dissolution by the karst waters that emerge at the Aachtopf. A group of cave explorers succeeded a few years ago - starting from one of the two sinkholes - with a 105 m deep shaft to work their way to the underground karst waters.

The waterfront promenade in Radolfzell creates a holiday atmosphere: simply unwind. 😎🍧☀️