Can kids use the sauna?

Yes. Children under 12 need no reservation, but mention them in the booking comment. The adult sauna fee is €23 for a two-hour pass.

Can we get around with a stroller or wheelchair?

All the buildings are accessible and the accessible toilet is downstairs in the restaurant building. The paths can be a bit bumpy in places.

Can we bring the dog?

Yes, dogs are welcome on the terraces and at the coffee shop.

Lonna Island

Name: Lonna Island
Address: Lonna, Helsinki, Finland, Helsinki, Uusimaa, FI

Featured inIsland Trips by Ferry from Helsinki

Things To DoSuomenlinna

Area

Suomenlinna

Good for

2–12

Cost

Paid

Setting

Outdoor

Season

Summer, from May

Updated

Oct 25, 2026

What you need to know

Summer season only: the island's restaurant, bar and sauna close for winter and reopen in May
Waterbus from Market Square: FRS Finland boats leave from Keisarinluodonlaituri pier, between the Suomenlinna and Korkeasaari ferry docks, and private boats can't land
Rocky shore, not a beach: bring water shoes for a dip, and take care, since nearby shipping traffic shifts the rocks

About

Lonna is a 150-meter island between Market Square and the Suomenlinna fortress, once a base for storing and clearing mines. Today it has a restaurant serving local, organic food, a bar with a sea-view terrace, and a public sauna with two wood-fired loft saunas.

Distances between buildings are short and the terrain is mostly easy, so small walkers can roam the whole island.

Outdoor

Paid

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