As, mentioned before, I'm a big fan of summer and the short distance to the water for a swim. Islands Brygge is situated only 5 minutes away from my studio. I often go for a dip while working. Popular amongst all the people in Copenhagen and many people barbecue and have beers during the evening there.
Dronning Louises Bro (Queen Louise's Bridge) is a bridge in central Copenhagen, between Nørrebro and central Copenhagen. A good spot for a beer in the summertime.
This is a lovely place to go if you want to enjoy the beach. It's also beautiful when its not bathing season. Go check out these little beach houses in beautiful colors. Also make sure to go for a walk in the forrest just next to the beach.