There is a pitch located behind the Stadthalle in Lübbecke, next to the sports hall and indoor pool. If you're looking for the sauna, you can find the sign indicating its location.
Currently free (the sauna is no longer available). Just a few hundred meters from the city center. If there are no events in the city hall, it should be quiet. Although it is only a parking lot, without electricity, etc., it is acceptable for free!
Watch the Lübbecke vs HSG game today, just a short distance away at the Merkur Arena. There are 3 spots available for overnight stays, although they do not have electricity or water. However, they are still suitable for a good night's sleep, and best of all, admission is free.