The entire swimming pool will remain closed until further notice.

Check admission fees…

Hallenbad Kostheim
Waldhofstraße 11
55246 Mainz-Kostheim

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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.