Blue Flag Centre is a mobile exhibition and activity center, which you can find in Sønderborg Marina every summer.
The center is staffed by a biologist and equipped with nets, buckets, waders, underwater telescopes, exhibit aquaria, a feel and touch pool and much more.
Everything is free to use.

The Blue Flag Center offers plenty of activities during the summer.
The station is open from week 26 through week 35. 
Opening hours are July - Wednesday to Sunday 10-17 and August - Monday-Friday 9-16. Week 27 Active Summer.

Location
The center is located at the marina in Sønderborg marina, Ringgade 2, 6400 Sønderborg.