With its picturesque paths, the Aasee attracts promenaders, bicyclists, and inline skaters to the countryside. A boat rental, a sailing school, and two sailing clubs invite you to explore the lake from the water. The physical well-being of the trippers is catered to by coffeehouses, restaurants, and hotels all around the lake.

The park around the Lake Aasee, comprising approximately 900.000 square metres, was awarded a prize as Europe’s most beautiful park in 2009 ("Europas schönster Park des Jahres 2009).

Whoever is on his way around the Aasee won’t get past modern art. That’s because there are a lot of sculptures around the lake that have been created by internationally renowned artists specifically for the four major sculpture exhibitions from 1977 to 2007.

During the summer months, guests are shuttled by the water bus Professor Landois from the city centre to the four special Aasee attractions. The All-Weather Zoo with its dolphinarium is best-known to many from the ARD programme "Pinguin, Löwe & Co”. Hippomax, the Westphalian Horse Museum which is also located in the All-Weather Zoo, is all about horses. Alien galaxies and worlds long since past are made accessible to the visitors by the Westphalian Museum of Natural History with its planetarium. The Mühlenhof open-air museum, being the fourth installation, shows how people lived and worked in former times.