To visit Isosaari and get the most from your holiday in Helsinki, create itinerary details personal to you using our Helsinki vacation planning site.
Isosaari (Swedish: Mjölö) is an island in Helsinki, part of the Ulkosaaret district of the city, more specifically of Itäsaaret, i.e. ‘eastern islands’. It was one of the fortified islands of the Gulf of Finland. Isosaari is one of the outermost islands in the Helsinki region, and it is a site that is important from the perspective of cultural history. Its sights and its nature are unique.
One of the biggest of the ex military islands now open for the public. You can either take the approx 1 hour ferry or by private boat. There is a small, very challenging golf course, but I understand.... more »
This is a nice island where you can get from Kauppatori by ferry. The trip takes about an hour. There is a cafe and a restaurant plus you can go to a common sauna. I think that you get more value... more »
Lots off fortifications and canons. a paradise for everyone.
My favorite island in the Helsinki archipelago. Great nature and tons of interesting military structures, including weapons that are still operational. The old torpedo testing station has only been open to the public since May 2019 and is a really interesting visit. You can only go there by private tour which leaves from the captain’s mess hall each day at 11:00.
Plan your trip to Helsinki
Get a personalized planA complete day-by-day itinerary
based on your preferences
Customize itRefine your plan. We'll find the
best routes and schedules
Book itChoose from the best hotels
and activities. Up to 50% off
Manage itEverything in one place.
Everyone on the same page.
See all ›
Hidden gems in Helsinki
See all ›
See all ›
Side trips from Helsinki
Nearby attractions in Helsinki
Plans to Isosaari by other users
46 days in Jyvaskyla & Helsinki BY A USER FROM FINLAND April, teens, kids, relaxing, historic sites, fast-paced, popular sights PREFERENCES: April, teens, kids, relaxing, historic sites ATTRACTION STYLE: Popular sights PACE: Fast-paced 38 days in Helsinki Region & Inari BY A USER FROM BELGIUM May, popular sights PREFERENCES: May ATTRACTION STYLE: Popular sights PACE: Medium 18 days in Finland BY A USER FROM NETHERLANDS September, popular sights PREFERENCES: September ATTRACTION STYLE: Popular sights PACE: Medium 22 days in Helsinki Region BY A USER FROM FINLAND October, outdoors, beaches, wildlife, slow & easy, hidden gems PREFERENCES: October, outdoors, beaches, wildlife ATTRACTION STYLE: Hidden gems PACE: Slow & easy 60 days in Helsinki BY A USER FROM UNITED STATES September, popular sights PREFERENCES: September ATTRACTION STYLE: Popular sights PACE: Medium 1 day in Helsinki BY A USER FROM AUSTRALIA July, kids, popular sights PREFERENCES: July, kids ATTRACTION STYLE: Popular sights PACE: Medium