Aqua Spa is the water centre of the Tallink Spa & Conference Hotel between the passenger port and the Old Town. It has a Finnish sauna, a steam sauna, a salt sauna and a hamam, a large indoor pool, a children's pool, jacuzzis and an outdoor pool open from April through the summer, with sauna yoga in the hamam on Mondays and Thursdays. It is open daily 8:00 to 22:00; a three-hour ticket costs €24 Monday to Thursday and €30 Friday to Sunday, and swimwear is compulsory in the pools and saunas.