Den grønne Lagune
Wellness & spa
About
Den grønne Lagune is a harbour bath with sauna facilities at Køge Marina near the town of Køge in Denmark. According to the operator, the harbour bath is public and free of charge all year round; for winter bathing it offers lit water, a sauna and changing rooms.
The sauna and changing rooms are for holders of a personal access wristband, and the season runs from 1 October 2026 to 30 April 2027. Day tickets and trial visits are not sold.
- Harbour bath free all year; the water is lit in the dark
- Sauna and changing rooms in season, 1 October to 30 April
- Sauna open daily 6:00–22:00
- Cold shower between the changing room and the sauna
- Sauna capacity of 18 people at most
Opening hours
| Sauna: daily | 6:00–22:00 (the heater switches off 15 min before closing) |
|---|---|
| Changing rooms: daily | 5:45–22:15 |
| Sauna and changing rooms: weekdays | closed 13:00–14:00 (cleaning) |
| Toilet | 24 hours |
Applies to the 2026–2027 season (1 Oct 2026 to 30 Apr 2027). According to the operator, the harbour bath itself is open all year.
Prices
| Season access wristband (sauna and changing rooms)personal, non-refundable, non-transferable; orange for women, blue for men | 750 kr |
|---|---|
| Harbour bath | free |
Day tickets and trial visits are not sold. The wristband is bought and coded at the harbour office (Havnekontor) on weekdays 8:00–12:00.
Pros and cons
Pros
- Year-round harbour bath at no charge
- Lit water for winter bathing, with a sauna next to it
- Long hours, daily 6:00–22:00
- Cold shower by the sauna
- Quiet harbour setting with walks and a beach
Things to keep in mind
- No day tickets, only a season wristband for 750 kr
- The wristband is sold on weekdays 8:00–12:00 only
- Guests and children cannot be taken into the sauna and changing rooms
- Closed 13:00–14:00 on weekdays
- The sauna requires swimwear; capacity is only 18
Who it suits and how it works
Who it suits
- winter bathing and a sauna in one place
- regular visits through the season
- a calm sauna by the sea
Rules and good to know
- Swimwear must be worn in the sauna
- Shower or rinse in the sea before the sauna; soap and shampoo are not allowed in the cold shower
- Bring an absorbent towel to sit on and another for your feet
- No eating or drinking and no photography in the sauna; alcohol means expulsion and loss of the wristband
- The wristband must be worn at all times; guests and children may not be brought in (1 wristband = 1 person)
- Do not pour water or essential oils on the stones
Getting there
Harbour address: Bådehavnen 2, 4600 Køge
A bus runs from the marina towards Køge station and Ølby station (line 121 according to the operator)
Contact
- Address
- Bådehavnen 2, 4600 Køge
- Phone
- 56 66 16 89
- [email protected]
Details from the operator's own site, as of 4 Nov 2026. Check them with the operator before you go: koegemarina.dk
Data source: OpenStreetMap contributors (ODbL licence)
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