, bathrobe hire etc. There were maybe 60 people male and female, mixed (adult) ages, so you don't feel at all uncomfortable being naked, and swimming nude is a very liberating experience. Please enter your email address carefully - we may send a verification request. You can read our moderation and picture policy here). I will definitely revisit when I next travel to Cologne. Men Only Mondays through Thursdays, otherwise mixed. We will NOT share your personal information with anyone. Admission price includes free re-entry within 12 hours. The only watch out for foreigners is the staff run regular, 10-15 minute sauna sessions in the biggest saunas. There is also one big indoor pool at the heart of the spa which again is for naked use only. The site has a 3 storey spa area including outdoor section (plus fitness area that I didn't visit) laid out in a Japanese onsen spa theme, and it is stunning. This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC. All in all a great and relaxing experience. To avoid this just look out for a little wooden sign on a stick on the door to the sauna - this means a session is happening. An extensive menu of freshly prepared food and drinks is available. Luckily I found Neptunbad and I can honestly say I had the most fantastic visit, despite being on my own. The highlight though was an warm indoor pool beneath a domed ceiling, with floatation tubes that you put under your head and feet - as you effortlessly float looking at the ceiling with your ears submerged (and your dangly bits bobbing up and down! you can hear relaxing underwater music being played. Discounts for young guys (under 25 birthdays and more. Check their website for ongoing offers and events. There are maybe 7 saunas, a couple of steam rooms, a few relaxation areas and a number of pools of mixed temperature. We check every review before publication. Nearest station : U: Rudolfplatz features : bar, steam room, massage, sauna, sun terrace, jacuzzi / hot pool, relaxing cabins, ). The entire spa area is totally nude, except for people moving between saunas etc holding towels or wearing bathrobes. By submitting a review you agree to be added to our mailing list. In hindsight a bottle of water would have been a good idea though as there are no drinking fountains. What's more, the staff are so welcoming and helpful. Personally I only took 2 towels (1 for sauna, 1 to shower at the end) and nothing else.