The Fitness Center at Copenhagen Island
The fitness center at Copenhagen Island Hotel is recommended by expert writers. Out of 7 publications that we monitored, 4 acknowledged the fitness center, including Lonely Planet, Rough Guide and Oyster.
Copenhagen Island  Lonely Planet
 Lonely Planet Rough Guide
 Rough Guide Oyster
 Oyster Jetsetter
 Jetsetter
 "Harbour-view rooms are particularly appealing, as is the fitness centre" 
 "In the hotel basement there’s a
fitness centre with steam bath and sauna" 
 "The hotel has a number of luxury conference rooms and an exceptionally large business center, and impressive views across the water -- even from the modern gym -- only add to its appeal as a business retreat destination" 
 "Enjoy a range of recreational amenities, including a sauna, a fitness center, and bicycles to rent"