During the season 2020 sauna Haapala (max. 60 hlö) is open and free for all visitors! 

Isosaari has three saunas, all located on the northern shore of the island: Rantala (max 8 persons), Koivula (max 15 persons) and Haapala (max 60 persons). Rantala is located near the Upseerikerho restaurant, while Kouvula and Haapala are one hundred metres west, next to a sandy beach.

You can rent a sauna as part of a charter cruise to the island, arriving with the scheduled ferry or if you come to the island on your own boat. Saunas can be rented to the public on weekends in June, every day between Midsummer and the start of school (usually the second week of August), and also on later August weekends. All saunas can be rented all year round, and separate saunas can be arranged for men and women in a mixed group.

During the public turns, there are separate dressing rooms for men and women, but the saunas and showers are shared, so a swimsuit is obligatory. Bring your own soap and towel!

Public sauna’s opening hours (free of charge!)

Ferry traffic days sauna is open for everyone from 12am to 5pm. Monday: Closed

For boaters and NollaCabins customers 18-19 women, 19.30-20.30 men, 20.30-21.30 mixed.


Note! Saunas are closed from 5pm to 6pm because of cleaning. 



Sauna Bookings

Rantala (sis. lounge), 195 €, max 8-10 people

The sauna room itself accommodates about 4 people, and the lounge a maximum 10 people at a time.

The booking fee includes the rent of the sauna and the lounge, as well as the firewood. Ferry tickets are not included. The sauna is at your disposal for three hours, which includes the heating of the sauna, the use of the sauna, and the final cleanup. Please leave the sauna and the lounge as you found it, or a cleaning fee of 100€ will be charged. Contact our customer services (+358) 400 102 111 and make your reservation. Custom orders for groups coming with their own boat is available all year round – ask for an offer!


The Koivula sauna, 300 €, max. 10-15 persons
Note! Koivula is under renovation and is not in use at the moment.

The Haapala sauna, 500 €, max. 30 persons + 20 € per additional person (max. 60 persons during summer, and 44 during winter)

For private groups. Prices include rental of the sauna and dressing room for 3 hours. Transportation to and from the island is not included in the price. You are free to bring your own beverages. You can also order coffee or a meal from the Upseerikerho restaurant, explore the island by yourself or book a guided tour, or play golf. For bookings, call +358 400 102 111 or e-mail us at Also for charter groups all year round!

Towel fee 5 € per person (optional).