The Pool at Radisson Blu Hotel, Berlin

"After a long day of sightseeing, guests can unwind in the well-being area, Splash, which offers a swimming pool, fitness facility, saunas, steam bath, waterfall showers, massage treatments and personal trainers"

"The spa area includes a gym, two saunas, and a pool, plus beauty treatments and massages"

"Superbly located at the end of Berlin’s Unter den Linden, just across the Spree River from Museum Island in the trendy Mitte district, the hotel has 427 unusually comfortable rooms done in a cutting-edge Scandinavian style, the excellent Restaurant Heat, a swell health club with a big swim-against-the-current pool, and a friendly (even at odd hours) staff"

"Thoughtful perks include a 24/7 spa with pool and sauna"

"Travelers could also consider the nearby Pullman Berlin Schweizerhoff, which has Berlin’s largest hotel pool and similar amenities, though moderately higher rates"