AMAGER - Helgoland poster Whether you have Finnish blood in your veins or would not dream of taking a dip until July, the public baths at Amager Helgoland are the place to be. If you want to warm up in the sauna on a cold day, however, you need to be a member of the local polar bear club. Since 1929, winter bathers have dived in from the turquoise-blue bath house at Helgoland. Today, Denmark has about 30,000 winter bathers. So how about it – time to release your inner polar bear?