The best MTB trails around Gremminer Lake

The lake is used as a leisure and recreation area. There are various beaches around the lake, including nudist and dog beaches, as well as access for horses. Boat and bicycle rentals, a campground, holiday bungalows, and floating holiday homes are available at the lake. The lake is a popular diving spot. The EuroVelo R1 cycle route, the Berlin-Leipzig cycle route, and the COAL | STEAM | LIGHT cycle route all pass by the lake. The latter covers 160 km and leads, among other places, along the various post-mining lakes in the region.[1] Since 1991, the Bergwitz Triathlon, a recreational triathlon over the sprint distance, has been held annually. Source: https://de.wikipedia.org/wiki/Bergwitzsee

Impressive

Well-paved cycle path between Ferropolis and Strohwalde along Lake Gremmin

https://de.m.wikipedia.org/wiki/Bergwitzsee

https://de.m.wikipedia.org/wiki/Bergwitzsee

Ferropolis (Greek-Latin ferro and polis "iron city") is an industrial museum and event venue in Gräfenhainichen, east of Dessau-Roßlau, on a peninsula in Lake Gremmin, the former Golpa-Nord open-cast mine.[1][2] Ferropolis is an anchor point of the European Route of Industrial Heritage (ERIH). Originally, the workshops, power supply, and social facilities of the Golpa-Nord open-cast mine, part of the Bitterfeld mining district, were located here. Until 1955, a mine railway line connected Bergwitz with the Zschornewitz power station. Parts of the abandoned railway embankment were later used as an access road for the Golpa-Nord lignite open-cast mine and later for the connection to Ferropolis. The mine railway and the current connecting tracks for Ferropolis were built parallel to this former railway line. After the closure of the open-cast mine in 1991, the idea of bringing together and using the large machinery remaining on the site as a museum on a remaining pillar projecting into the open-cast mine, today's peninsula, was born, based on a diploma thesis submitted to the Bauhaus Dessau Foundation in 1992 by the architect Martin Brück.[3] In addition to the Bauhaus Foundation, the Expo 2000 Society Saxony-Anhalt GmbH and the Lusatian and Central German Mining Administration Company were involved in the design of the site, which was designated as a regional project for Expo 2000.[4][5] The official founding of the "City of Iron" was completed with the unveiling of the town sign by the then Minister of Economic Affairs of Saxony-Anhalt, Klaus Schucht, on December 14, 1995.[6] Ferropolis opened to the public in July 2000. The opening gala concert was conducted by Greek composer Mikis Theodorakis; the accompanying light show was staged by Gert Hof.[7] Bauhaus and Expo-Gesellschaft withdrew from the operating company Ferropolis GmbH at the end of 2001;[8] The current main shareholder (2019) is the city of Gräfenhainichen.[9] In 2004, extensive renovation work was carried out on the large-scale equipment. The connection to Ferropolis was renewed in 2005. In December 2005, Ferropolis was officially included in the European Route of Industrial Heritage. Since April 22, 2006, the Gräfenhainichen registry office has operated a branch office for weddings in the disused control room of the Golpa-Nord open-cast mine. Ferropolis can also be reached by museum trains from the former Zschornewitz narrow-gauge railway. An industrial museum has been established in the former Zschornewitz coal-fired power plant as a testament to coal-fired power generation. On July 6, 2013, one of five parallel concerts titled "Together Against the Flood - We Say Thank You" by the radio station MDR Jump was held in Ferropolis. The occasion was the regional impact of the 2013 floods in Central Europe.[10] Source: Wikipedia

Idyllic, fairly large lake with a beautiful circular path

Very beautiful lake with a great hiking trail around the lake.