A Family Day on the Fjord: Champagne for the Parents, Cannonballs for the Kids

A private Oslofjord boat tour works for families with children of any age. The Cormate T28 carries up to seven guests, with child-size life jackets, a swim ladder and a stable hull at anchor. The captain builds the route around the kids: sheltered coves for swimming, a stretch on the plane for the ones who want speed, snack breaks at calm anchorages. Two to four hours from Tjuvholmen, from NOK 16,688 for three hours.

The fourteen-year-old has been watching the water since we left Tjuvholmen. He is sitting on the gunwale with one hand on the rail, leaning out just far enough to catch spray on his face. His sister, two years younger, is tucked into the stern with their mother under a blanket, a bag of Norwegian biscuits between them. Their father is standing next to me, asking about the Opera House roofline going out of sight behind us. Nobody has mentioned a phone in twenty minutes. Four people are doing four completely different things and all of them are happy.

What you get: a 28-foot Cormate with a swim ladder, a captain who knows every sheltered bay in the inner fjord, and three hours of open water where a family can be together without competing for anyone's attention. There is no programme and no schedule printed on a laminated card. The day takes the shape of whoever is on board. Children who were promised "a boat trip" tend to end up having the best day of the holiday, for reasons their parents did not see coming.

Leaving the harbour

The boat leaves from Tjuvholmen, at the western end of Aker Brygge. The first few minutes are harbour traffic: ferries crossing to Nesodden, kayakers hugging the shore, the B1 island ferry pulling out on its way to Hovedøya (HOO-ved-oy-ah). Children notice things from the water that adults walk past on land: the rust stain running down the hull of a cargo ship, a cormorant drying its wings on a navigation buoy, so still that it looks placed there as a prop. The opening stretch of any cruise on the fjord lands differently on a child. Everything is new and close, and the city they thought they knew is unrecognisable from sea level.

Then the captain opens the throttle. The Cormate lifts onto the plane, the wind arrives properly, and the harbour falls away behind. This is where the children divide into two camps: the ones who shriek and the ones who go dead quiet with concentration. Both reactions mean the same thing. The boat does forty knots when the fjord is flat, and for a seven-year-old whose only experience of boats is a ferry, that gap is roughly the gap between a bus and a rollercoaster.

The islands up close

The inner Oslofjord holds more than forty islands between the city and the open water beyond. Some are large enough for hiking trails and twelfth-century monastery ruins. Others are barely more than a flat rock with a pine tree on it. The captain threads through them at a slower pace, and this is when the pointing starts.

Gressholmen (GRESS-hol-men) appears first, a low green island with a sandy southern beach that warms quickly in the sun. Oslo's first airport was here: a seaplane harbour in operation from 1926 to 1938, and the old hangar is a boat store today. The island became part of the Gressholmen–Rambergøya nature reserve in 1992, protected for its shallow marine flats and its calcareous pine forest, according to Store norske leksikon. In summer it is loud with nesting terns that dive-bomb anyone who walks too close to their scrapes in the gravel, which children find thrilling from the safety of the boat. If you want to go back on your own another day, here are ferry times and what is on the island.

Beyond Gressholmen, the gap between Lindøya and Nakholmen (NAHK-hol-men) narrows to a channel barely wider than the boat itself. The houses on Nakholmen have no roads connecting them, only footpaths, and in summer laundry hangs between the trees. It looks like a village from a different century, ten minutes from the city centre.

Further out, past Bleikøya (BLAY-koy-ah) and its red wooden cabins, the water deepens and the islands thin out. At Steilene (STAY-leh-neh), the outermost cluster before the open fjord, the swell starts arriving from the south, you feel it in the hull, and the city has finally disappeared behind the islands.

Is an Oslo Fjord boat tour safe for children?

Yes. There are life jackets in every size down to toddler, a safety briefing before departure, and during swim stops the engine is off and the captain watches from the boat. The Cormate T28 is a stable hull at anchor in sheltered water and is built for coastal conditions in the Skagerrak.

The briefing takes two minutes and it is not optional: where the life jackets are stored, how the swim ladder locks into position, which parts of the boat to hold when the speed picks up. Small children wear life jackets for the full trip unless their parents say otherwise, and in the water during swim stops. No child has ever argued about it, because the alternative is not swimming at all, and the water is right there, and the ladder is right there, and their sibling is already in. The rest of the practical questions are answered on the FAQ page.

The anchor drop

The captain picks the swim spot on the day: wind, swell, sun angle, how many other boats are in the area. On a south-westerly it might be a bay on the eastern side of Hovedøya, where flat rocks slope into deep clear water and the twelfth-century Cistercian monastery ruins show through the trees above. On a windless day it might be the nameless inlet between Gressholmen and Heggholmen, where the water turns turquoise over a sandy bottom and you can see three metres down.

The engine dies. The anchor chain rattles out. The boat stops being a vehicle and becomes a floating platform: diving board, picnic table, sun deck. The swim ladder folds down from the stern and the ownership changes hands. Children who were passengers are climbing, jumping, swimming in the fjord, hauling themselves up the ladder and jumping again. The cycle runs for as long as you let it. The record, as far as we can tell, is about forty-five minutes of continuous cannonballs.

"My kids (14 and 15) enjoyed jumping off the boat. We then enjoyed a glass of champagne he had waiting for us along with some strawberries, chocolates and snacks."

— M-Grace K.

In the water there is shouting, competitive splashing and an argument about whose cannonball made the bigger wave. On deck, two adults sit in the stern with the strawberries, sun on their faces, the boat still, nobody needing anything from them. That is the photograph parents take home, and possibly the rarest thing a family holiday produces: everyone content at the same time.

What they see from above

The drone changes the dynamic. When the captain sends it up during the cruise, children forget the water, the speed and the snacks. They just want to see the screen. The live feed shows the boat from fifty metres up, a white dart cutting a wake through dark blue water, the islands fanning out around it, the Oslo skyline shrinking to a thin line of glass and concrete. Children wave at the camera. They position themselves for the shot. They ask to see the footage immediately, then ask to see it again.

The footage and photos arrive after the trip, and they show something you cannot see from deck level: green islands scattered across dark water, shipping lanes, ferry wake patterns, and somewhere in the middle of it a small boat with a family on board who look, from that height, like they have the whole fjord to themselves. One family had a still from the drone footage printed and framed. Their children still call it "the boat day."

The quiet stretch home

After the swim stop, the snacks and the drone, the energy shifts. The return to Tjuvholmen is slower. The captain takes a different route back, past Dyna lighthouse on its skerry at the mouth of the harbour, or through the narrow sound between Lindøya and Nakholmen where the houses crowd to the water's edge. The light goes soft and golden in the late afternoon, and the water flattens.

Children go quiet on the way back, settled rather than bored. A toddler falls asleep in a parent's lap with a biscuit still in her fist. A teenager sits on the bow with his feet hanging over the edge, watching the harbour approach, saying nothing. The parents are in the stern, asking the captain where to eat dinner. Norwegian has a word for this, kos, which means something close to cosy togetherness and does not translate cleanly. The boat runs at half speed past Bygdøy (BIG-doy), where the Norwegian Maritime Museum sits on the headland, and then rounds the corner back into Tjuvholmen.

Reviews are about the jumping, the swimming and the speed. The ride home is what parents describe later, back in the hotel room with the children asleep by eight, when everyone was warm and tired and salt-crusted and nobody had to be anywhere.

What to bring, what not to worry about

Bring sunscreen, towels if you plan to swim, a light jacket for the ride home because the wind at speed cools a wet child fast, and hats for small heads. That is the whole list. Life jackets, snacks, drinks and blankets are on the boat. Ruter trams and ferries get you to Tjuvholmen from anywhere in the city in under twenty minutes.

If your children plan to swim, and they will plan to swim whether or not they told you beforehand, pack swimwear. Oslo Kommune tests the bathing water through the season and publishes the readings. From late June through August, surface temperatures in sheltered bays usually sit between 18 and 22°C (check the current fjord reading before you swim). It is cold on entry, warm within thirty seconds, and impossible to leave voluntarily once you are in.

The thing nobody expects

Families book the trip for the children: the swimming, the speed, the novelty of a private boat. The kids do love it, and the reviews make that clear. What surprises the parents is how little the day asks of them. The captain has the route and the boat has the entertainment, so the logistics, the decisions and the low-level negotiation that fills most holiday days with children all disappear for a few hours.

The best family trips are the ones where the parents stop trying to orchestrate things. Once they work out that they can sit still and let the kids run wild on the swim ladder, the mood on the boat changes, and it usually takes about fifteen minutes.

If you are deciding between a two-hour and a three-hour trip with kids, take three. Three hours is NOK 16,688 for the boat, up to seven people, and the extra hour is where the swimming happens.

Kids divide into two camps when the throttle opens up: the ones who shriek and the ones who go dead silent with concentration. Both reactions mean the same thing. We adjust as we go. A sheltered cove if they are getting cold, a longer run on the plane if they want speed, a quiet bay at anchor when they have had enough of both.

Prices and water temperatures are as of July 2026. The boat is in the water from May to September. Check the live fjord reading before you swim. Last reviewed: July 2026.