Helsinki’s islands: ferries and routes for all seasons
The sea is part of everyday life in Helsinki.
With over 300 islands, bridges, and ferries weaving through the archipelago, getting around by water is both easy and magical. Whether you’re planning a sunny summer picnic or a crisp winter adventure, the journey across Helsinki’s sparkling coastline is always part of the experience.
This guide will help you explore Helsinki’s ferry routes, island connections, and best tips—in every season.
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Public ferries and water-buses: how to explore Helsinki’s islands
HSL ferry to Suomenlinna
The easiest way to start island-hopping.
The public ferry to Suomenlinna departs from Market Square all year round. It’s part of Helsinki’s public transport system—meaning you can use a regular HSL ticket or travel card. Ferries run every 15–30 minutes, and the ride takes about 15 minutes.
- Price: Same as a city bus or tram ticket (around €3–€4 for a single journey).
- Buy tickets: HSL app, ticket machines, or transport card.
JT-Line summer ferries
Island-hopping made easy.
JT-Line operates seasonal ferries from May to September, connecting the city centre to Lonna, Vallisaari, Pihlajasaari, and Uunisaari. Perfect for exploring beaches, hidden trails, and cozy seaside cafés.
- Price: Around €6–€10 per one-way ticket.
- Tickets: Buy online, from booths at Market Square, or onboard (card payments accepted).
- Tip: Some hop-on-hop-off options available.
FRS Finland archipelago routes
Discover the wider archipelago.
FRS Finland runs summer ferry routes to the Eastern Archipelago (Kalasatama to Vuosaari) and Western Archipelago (Market Square to Espoo). These routes reach quieter islands like Vasikkasaari, Kuusisaari, and beyond.
- Price: Typically €8–€15 depending on the distance.
- Tickets: Purchase online in advance for best prices.
Walkable island connections
No ferry needed—just your feet (or bike).
Some of Helsinki’s favourite islands are connected to the mainland by bridges:
- Seurasaari: Open-air museum, squirrels, forest walks.
- Mustikkamaa: Beaches, summer cafés, kayaking spots.
- Uunisaari: Winter bridge connection to seaside saunas and beach cafés.
Ferry info and timetables
Suggested island adventures: easy ferry routes
One of the best ways to experience Helsinki’s seaside is by piecing together a few island stops into a day—or even just a lazy afternoon. Thanks to frequent ferries and short travel times, you can easily see more than one island without feeling rushed. Here are a few relaxed route ideas to help you plan:
History and relaxation: Suomenlinna + Lonna
Explore the historic sea fortress, a UNESCO World Heritage Site recognised for its exceptional military architecture and cultural significance . Wander through atmospheric tunnels, climb grassy ramparts, and enjoy coffee with a view of the Baltic Sea. After a few hours, hop back on a ferry heading to Lonna—a small, laid-back island perfect for a leisurely lunch or a sauna session by the shore. Finish your day back at Market Square with a sunset stroll along the Esplanade or a seaside dinner. This route gives you history, relaxation, and a true taste of Helsinki’s easy island rhythm.
- Suomenlinna ferries run year-round via HSL Ferry.
- Lonna ferries operate seasonally with FRS Finland.
Wild nature and beach life: Vallisaari + Pihlajasaari
Catch a summer ferry to Vallisaari, where wild forests and old military ruins create a quiet, untouched landscape full of birdsong and sea breezes. After hiking the island’s scenic trails, continue by ferry to Pihlajasaari, known for its sandy beaches and smooth rocky shores—perfect for swimming, sunbathing, or simply watching sailboats glide past. This route offers a full day of nature, beach life, and island calm just minutes from the city centre.
- Vallisaari and Pihlajasaari ferries are available in summer via JT-Line and FRS Finland.
Island hopping by foot: Uunisaari, Liuskasaari, Liuskaluoto
Take a small ferry from Merisatamanranta to Uunisaari, enjoy beach cafés and sea views, then cross the footbridge to Liuskasaari, home to beautiful marina views and tasty pizzas at Skiffer restaurant. Continue onto Liuskaluoto for even more archipelago atmosphere.
- Ferries to Uunisaari and Liuskaluoto are operated seasonally by Aava Lines.
Family day out: Korkeasaari Zoo + Mustikkamaa
Visit Helsinki Zoo on Korkeasaari Island, then enjoy playgrounds, beaches, and forest trails on nearby Mustikkamaa.
- Ferry access available in summer via JT-Line.
- Bus 16 from Helsinki Central Station year-round (ticket via HSL)
- Year-round access by bus or on foot via a bridge.
A day in the Eastern Archipelago: Kaunissaari + Eastern Route Cruise
If you’re craving a true archipelago adventure, head east. Start by taking the metro to Vuosaari, then catch a ferry to Kaunissaari, a quiet island of beaches, forests, and hiking trails. If you want a longer ride, explore the Eastern Archipelago Route, sailing through the canals and lesser-visited corners of Helsinki’s island world.
Getting there:
Eastern Archipelago cruises from Kalasatama, Herttoniemi, Laajasalo or Vuosaari piers.
FRS Finland ferry to Kaunissaari.
Plan your island adventure
Check ferry schedules and seasonal routes
Some islands like Suomenlinna are accessible all year, while others like Pihlajasaari and Vallisaari are summer-only gems. Ferry timetables can change with the season and weather, so always check the latest schedules before you go.
Dress for the sea breeze
Even in summer, the Helsinki archipelago can surprise you with fresh winds and cooler temperatures. Pack a light jacket, comfortable walking shoes, and sun protection. In winter, bundle up properly—layers, hats, and gloves are essential for seaside walks and ferry rides.
Pack a picnic or snacks
Some islands have cafés and restaurants (like Lonna or Suomenlinna), but many are rustic and perfect for DIY picnics. Stock up on pastries, sandwiches, or fresh berries from Market Square before you board.
Bring swimwear—or sauna gear
In summer, beaches and swimming spots await. Pack swimwear, a towel, and a sense of adventure.
Respect nature and leave no trace
Helsinki’s islands are pristine, and keeping them that way is part of the experience. Stay on marked trails, take all your rubbish back with you, and respect any seasonal wildlife nesting areas or restricted zones.
Travel light and stay flexible
Ferries can get busy on sunny weekends, and island weather can shift fast. A flexible attitude, some extra water, and a lightweight backpack go a long way towards an easy, memorable day.
Consider a guided tour for hidden stories
If you want to dive deeper into the archipelago’s history and nature, consider joining a guided walking or kayaking tour. Local guides can unlock hidden corners, military secrets, and nature tales you might otherwise miss.
