Ironman course
Start of the outdoor pool season: May 23, 2026
Outdoor pool
Outdoor pool hours:
Mon. – Sun.: 9:00 a.m. – 8:00 p.m.
Indoor pool hours (starting when the outdoor pool opens):
Mon.: 7:00 a.m. – 9:00 a.m.
Tue.: 7:00 a.m. – 9:00 a.m.
Wed.: Closed
Thu.: 7:00 a.m. – 9:00 a.m.
Fri.: 7:00 a.m. – 9:00 a.m.
Indoor pool hours (after the outdoor pool closes):
Mon.: 7:00 a.m. –9:45 p.m.
Tue.: 7:00 a.m. –9:45 p.m.
Wed.: Closed
Thu.: 7:00 a.m. –9:45 p.m.
Fri.: 7:00 a.m. – 9:45 p.m.
Sat.: 10:00 a.m. – 6:00 p.m.
Sun.: 8:00 a.m. – 10:00 a.m. and 1:00 p.m. – 6:00 p.m.
Special features (except during Hesse summer vacation):
Sat.: 8:00 a.m. – 10:00 a.m. Women’s swimming
Sun.: 10:00 a.m. – 1:00 p.m.Baby swimming
Note: The ticket office closes 1 hour before closing time, and the pool closes 30 minutes before closing time.
Public transport:
Bus lines 4, 17, 23, 24, 27, 45 & 47 to Kleinfeldchen.
Opening hours over the Whitsun holiday
Mainzer Straße Leisure Pool: Open on Whitsun Sunday from 10 a.m. to 6 p.m.; closed on Whitsun Monday. […]
Note on the use of lockers and safe deposit boxes
You will need your own padlocks to use the lockers and safe deposit boxes at Kleinfeldchen outdoor pool. […]
Customised training for long-distance swimming, triathlon and Ironman
Our customised training is perfectly tailored to your personal abilities and your individual performance level. Whether you are preparing for long-distance swimming, triathlon or the Ironman – we will accompany you on your path to success!
Offer times
Dates: July 6, July 13, July 20, July 27, August 3
Mondays 7.30 pm to 9.15 pm
The course programme is aimed exclusively at adults. Each course can be booked individually and costs €18. Bookings can only be made at the pool ticket office. We reserve the right to cancel courses in the event of bad weather.