Lonna Sauna, Helsinki Archipelago Travel Guide

4.4 (122)

Escape to Lonna Island: Experience traditional Finnish sauna and cuisine in a historic maritime setting, just minutes from Helsinki.

Lonna Sauna, located on the small island of Lonna, offers a traditional Finnish sauna experience with a modern twist. Just a short ferry ride from Helsinki's Market Square, this island oasis combines historical charm with contemporary design, providing stunning views of the city skyline and the open sea.

A brief summary to Lonna Sauna

Lonnan saari, Helsinki, 00190, FI
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From Eve

Know before you go

Hi, I'm Eve. Here are a few practical things to know before exploring Lonna Sauna.

Book your sauna and restaurant reservations in advance, especially during peak season, to ensure availability.
Check the FRS Finland website for the waterbus schedule to Lonna Island from Helsinki Market Square.
Explore the island's historical remnants, including the old mine storage buildings and diesel generators.
Enjoy a picnic on the rocky shores or grassy areas while taking in the scenic views of the Helsinki skyline.
Visit the island in the evening to witness a gorgeous sunset over the Helsinki archipelago.

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Explore Lonna Sauna on the Map

A handpicked selection of must-see spots near Lonna Sauna, mapped for you.

Getting There

Public Transport

The primary way to reach Lonna Island is by waterbus from Helsinki Market Square (Kauppatori). FRS Finland operates regular services from May to September. The waterbus departs from the Keisarinluodonlaituri pier, located between the Suomenlinna HSL ferry and Korkeasaari ferry docks. A single ticket costs €8 and the journey takes approximately 10 minutes. Check the FRS Finland website for the most up-to-date schedule.
Walking

While not a direct option, you can walk to the Market Square (Kauppatori) from various points in central Helsinki. From the Helsinki Central Railway Station, it's approximately a 20-minute walk. Once at the Market Square, transfer to the waterbus for the final 10-minute ferry ride to Lonna Island. Walking around Helsinki is free; the waterbus fare is €8.

Discover more about Lonna Sauna

Lonna Sauna is located on the charming island of Lonna, a short 10-minute waterbus ride from Helsinki's Market Square. This small island, once a military outpost, has been transformed into a recreational haven, offering a unique blend of history, relaxation, and natural beauty.Lonna's history is rich and varied. In the 19th century, the island housed production and storage facilities for gunpowder and mines. It later served as a demagnetizing station for ships during and after the Second World War, protecting them from magnetic mines. Today, visitors can still see the diesel generators used for this process.The public sauna on Lonna Island is a highlight, offering a modern design that respects traditional Finnish sauna culture. Designed by architect Anssi Lassila, the wooden building was completed in 2016 and features a handcrafted wooden log structure and a sculptural pitched roof in zinc plate. Inside, wood-burning stoves heat the steam rooms, providing an authentic bathing experience with views of the sea. The sauna also includes outdoor showers for a full-body experience of the seaside winds.In addition to the sauna, Lonna Island features a restaurant serving high-quality seasonal dishes with a modern take on traditional island cuisine. The restaurant uses mostly Finnish ingredients, favoring organic and locally grown produce. A bar is also available, offering refreshing drinks, wine, coffee, and small snacks.Lonna Island is open from May to September. The island is easily accessible by waterbus from Helsinki's Market Square.