Stockholm is turning into a healthy city with less pollution, people walking and getting lot’s of god low intensity exercise.
If you still want to get a nice trip somewhere we suggest you take a boat. The old steamships in Stockholm are still running and they are one of the best ways to enjoy Stockholm in summer. Ships depart from outside Grand hotel near Kungsträdgården, from Nybroplan close to Dramaten and Kungsträdgården and also from Stadshusbron, just besides Stadshuset, city hall.