Indoor swimming pool
Closed on Mondays
Tuesday to Friday 7 am – 9:45 pm
Saturday and Sunday 9 am – 5 pm
Saturday Women’s Bath Time 5 pm – 8 pm | Attention: E-ticket necessary!
(Not during the Hessian summer holidays and the fasting month of Ramadan).

Monday (Mixed) 1 pm – 9:45 pm
Tuesday (Men):1 pm – 9:45 pm
Wednesday (Ladies) 8 am – 1 pm
Wednesday (Mixed) 1 pm – 9:45 pm
Thursday (Ladies) 1 am – 9:45 pm
Friday (Mixed) 1 am – 9:45 pm
Saturday and Sunday (Mixed) 9 am – 5 pm

The swimming hall cannot be used on Monday

The ticket office closes one hour and the pool closes 30 minutes before the end of opening hours.

Check admission fees…

Hallenbad Kostheim
Waldhofstraße 11
55246 Mainz-Kostheim

Google Maps

Accessibility by public transport:
Bus line 33 to Uthmannstraße; Mainz bus lines 56 & 57 to Hallenbad.

An indoor pool with so much more…

The indoor area features a horseshoe-shaped pool for swimmers, non-swimmers and divers with 570 m2 of water and a parent and child area.

The indoor pool is divided into the following sections:

Swimmers’ pool

  • Size: 25 x 12.5 m
  • Area: 312,5 qm
  • Swimming lanes: 5 swimming lanes (25 m each)
  • Depth: 1.40 to 1.80 m

Diving pool

  • Size: 10.6 x 12.5 m
  • Area: 132,5 qm
  • Diving boards: one 3 m board and two 1 m boards
  • Depth: 3.80 m

Non-swimmers’ pool

  • Size: 10 x 12.5 m
  • Area: 125 qm
  • Depth: 60 cm to 1.35 m
  • Water temperature: 27.5°C with an air temperature of 30°C

Parent and child area

  • Size: 8.75 x 3.75 m
  • Area: 33 qm
  • Depth: max. 30 cm
  • Water temperature: 32°C with an air temperature of 36°C

Three sauna houses can be found on the roof of the indoor pool.

Indoor sauna

Area: 257 qm. Finnish infusion sauna with a temperature of 95°C and a humidity of 10 to 15% (the infusions are refreshed every hour with different scents).

Outdoor sauna

Area: 245 qm. Finnish dry sauna with a temperature of 85°C, which is also used as a sanarium (organic sauna) with a temperature of 65°C and humidity of 40 to 95%. Steam bath with a temperature of 42°C and a humidity of 95%. Large outdoor area with green plants and different quiet zones for relaxing and unwinding; massages by appointment only.

Other facilities

  • Table tennis room
  • 100 parking spaces

Outdoor area (open from April to October, depending on the weather)

  • 4.000 qm
  • 2 table tennis tables
  • Exciting climbing frame for toddlers

Disabled facilities

Wheelchair access, wheelchair-friendly toilet and changing facilities, and four disabled parking spaces.