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Attractions · Uusimaa, Helsinki

Allas Sea Pool

  • CategorySauna And Swimming
  • Duration2-3 hours
  • AdmissionAdult Day pass about €16-19 (about $18-22 USD); check allaspool.fi · Child Reduced prices for children
  • Price$$
  • Transport5-minute walk from Market Square (Kauppatori) along the waterfront in Katajanokka

Allas Sea Pool is a waterfront spa and swimming complex at Katajanokanlaituri 2 A in central Helsinki, Finland, beside Market Square (Kauppatori) and facing the harbour and the Presidential Palace. It consists of a heated freshwater pool, a seawater pool, a children's pool, several saunas and a large terrace, and it is open year-round, so swimmers can step from a hot sauna into the harbour air in the depth of the Finnish winter.

A waterfront complex beside Market Square with a heated pool, a seawater pool, saunas and a terrace, open year-round with a cold plunge in the harbour.

Allas Sea Pool is a waterfront spa and swimming complex at Katajanokanlaituri 2 A in central Helsinki, Finland, beside Market Square (Kauppatori) and facing the harbour and the Presidential Palace. It consists of a heated freshwater pool, a seawater pool, a children's pool, several saunas and a large terrace, and it is open year-round, so swimmers can step from a hot sauna into the harbour air in the depth of the Finnish winter. The complex is built on piers over the Baltic Sea, and the seawater pool is filled directly from the harbour, which gives a distinctive experience of swimming in the middle of the city with views of passing ferries and the Uspenski Cathedral on the hill opposite. Saunas include a traditional wood-heated sauna and a smoke-style or panoramic sauna area, and the sauna and cold-plunge ritual is the heart of a visit. The terrace has a restaurant and a bar, and towels and swimwear can be rented or bought on site. A typical visit takes 2 to 3 hours. A day pass costs about €16-19, with reduced prices for children, so allaspool.fi should be checked for the current rates. Opening hours run from 6:30 on weekday mornings and 8:00 on weekends, closing at 21:00 or 22:00, with changes for events. Swimwear is worn in the pools and saunas, and showering before entering is required. Early mornings are quiet, while evenings and weekends, especially in summer, are the busiest. Good photographs can be taken from the terrace looking over the harbour toward the Presidential Palace, and from the Market Square side of the complex at sunset. Visitors who want to avoid queues in summer are better off arriving on a weekday morning.

Practical information for Allas Sea Pool · Last updated September 2026
Admission Adult Day pass about €16-19 (about $18-22 USD); check allaspool.fi · Child Reduced prices for children
Hours Mon-Thu 6:30-21:00, Fri 6:30-22:00, Sat 8:00-22:00, Sun 8:00-21:00; times can change for events, check allaspool.fi
Typical visit 2-3 hours
Best time Early morning, or a winter evening for steam against the cold
Getting there 5-minute walk from Market Square (Kauppatori) along the waterfront in Katajanokka
Address Katajanokanlaituri 2 A, 00160 Helsinki

Location

Katajanokanlaituri 2 A, 00160 Helsinki

60.1670, 24.9575 View on map

Highlights

  • Heated pool and seawater pool in the harbour
  • Several saunas with a traditional sauna experience
  • Terrace with a restaurant and harbour views
  • Open year-round, including cold-plunge winter swims
  • Beside Market Square in central Helsinki

Tips for visiting

  • Arrive on a weekday morning to avoid queues in summer
  • Showering before entering the pools is required
  • Check allaspool.fi for current prices and event closures
  • Bring swimwear and a towel, or rent them on site
  • Visit on a winter evening for the contrast of steam and cold air

When to visit

Early mornings are the quietest. A winter evening gives the contrast of steam and cold air, while summer weekends are the busiest.

Accessibility

The complex is on a pier with level access in many areas, and accessible facilities are available, but visitors should confirm specific arrangements at allaspool.fi.

Frequently asked questions

How long does a visit to Allas Sea Pool take?

Most visitors spend 2 to 3 hours, including time in the saunas and on the terrace.

Is Allas Sea Pool good for kids?

There is a children's pool and reduced prices for children, so families commonly visit, especially in summer.

Is photography allowed?

Photography is not appropriate in the pool and sauna areas, though the terrace and exterior views are fine for photos.

Is the complex open in winter?

Yes, it is open year-round, and the winter visit with saunas and a cold plunge is one of its main draws.