If you want to be more active, Bremen can offer almost every kind of sporting activity from rowing in the Bürgerpark, to a serious workout in the fitness gym - something for everyone. Very near to the university you can bathe in the lake called the Unisee. The quality of the water in the river Weser is so good nowadays that one can bathe in the river, too.
Bremen is renowned for its flea markets. The Bremer "Kajenmarkt" takes place from 8.00 am to 4.00 pm on the first Sunday of the month, May through October on the promenade alongside the river Weser near the Bürgermeister-Smidt-Bridge. The fleas market on the Bürgerweide can be visited very Sunday between 8.00 am and 3.00 pm. On Saturday mornings there is a private flea market on the Weser promenade near Wilhelm-Kaisen-Bridge.
Soccer/football is a big thing in Bremen. Don't miss to meet the team and the fans at the Weserstadion.