Green Island Copenhagen: Sauna, Harbour Dip & What to Expect

What Green Island Copenhagen is

Green Island is a pop-up café and bar that appears on the harbour during summer, with a 360-degree view of the water and the city around it. VisitDenmark calls it one of the lesser-known floating spots, which fits its position next to the harbour bath on Kalvebod Brygge rather than in the busiest part of the harbour.

It is not a swimming hall and not a traditional Danish svømmehal. Think of a bar with barrel saunas attached, set beside public harbour swimming, and you have the shape of the visit. If you want year-round sauna sessions in Copenhagen, the city has dedicated venues; for the range of them, see the guide to saunas in Copenhagen, which covers the indoor counterparts to this summer setup.

The island also functions as a rental point for Green Kayak, the free scheme where you borrow a kayak and collect waste from the water as you paddle. That makes it possible to combine a paddle with a sauna round and a drink, though the kayak and the sauna are separate activities rather than a package.

Where it sits on Kalvebod Brygge

The island is next to the harbour bath on Kalvebod Brygge, one of four Copenhagen harbour baths named by VisitDenmark alongside Islands Brygge, Sluseholmen and Fisketorvet. That position puts it on the city side of the harbour, within walking distance of the centre and the bridge to Christianshavn.

The setting matters more than it sounds. Because the cold water is the harbour bath rather than a plunge pool inside the venue, your dip depends on the bath being open and on the harbour being clean enough to swim, which VisitDenmark describes as a point of civic pride in Copenhagen. In summer that is the normal state of affairs; outside the season the bath and the island follow different schedules.

The 360-degree view is the other reason to come. You are looking back at the city from the water, with the harbour traffic and the skyline in front of you, rather than sitting inside a building. For a sense of how the other harbour baths compare, the guide to Islands Brygge harbour bath covers the best-known of the four.

The barrel saunas on the island

The sauna side of Green Island is built around barrel saunas, the wooden cylinder type that heats up quickly and holds a small group. VisitDenmark mentions them in the same breath as CopenHot's floating hot tubs, as part of the harbour's floating wellness scene rather than as a full spa complex.

A barrel sauna is a modest structure: you sit close together, the heat is dry and direct, and the round shape means there is no far corner to retreat to. That suits the rhythm here, where the point is a short, hot round followed by harbour water and a drink, not a long multi-room session. Readers used to the full Finnish ritual of Löyly, whisking and cooling off outdoors will recognise the pattern; the Finnish sauna guide explains where that tradition comes from and how the rounds are usually paced.

If you want a floating hot tub rather than a barrel sauna, CopenHot Copenhagen runs hot tubs that sail around the harbour, with barrel saunas of its own for drying off. It is a different booking and a different experience, but it is the closest alternative when the island is not in season.

How a visit works

The natural sequence is heat, cold, bar. You take a round in a barrel sauna, walk the few steps to the harbour bath for a dip, then dry off and sit down with a drink or something from the café. The short distance between sauna and water is the whole advantage of the site; there is no long cold walk in a towel.

Because the bath is public and separate from the bar, you should expect to share the water with ordinary Copenhagen swimmers rather than a sauna crowd. The island is a bar with saunas, so the atmosphere follows the bar: music, conversation and people coming and going. If you want silence and a strict sauna routine, this is not that place.

The specific details of a session, such as how long the barrel sauna runs, whether you book a slot or walk in, and what the swimwear convention is on the island, are not set out in the public material. Rather than guess, read the booking information on the venue's own site before you go, since a pop-up can change its arrangements from one summer to the next.

Food and drink

The café and bar are the core of Green Island, and the sauna is the activity attached to them. VisitDenmark describes it as a pop-up café and bar first, with the floating position and the harbour view as the draw. Plan on drinks and light food at the water's edge rather than a full restaurant meal.

That bar-first character shapes the visit. You can come for a drink without touching the sauna, or take a sauna round and stay for a drink afterwards. It also means the island is weather-dependent in a way an indoor venue is not: a cool, wet evening is a different proposition from a warm one.

If your priority is food with a harbour view rather than a sauna, La Banchina on Refshaleøen is the Copenhagen benchmark for swimming and eating at the water's edge, and it is a realistic trip from Kalvebod Brygge by bus or bike.

Tickets and prices

Green Island has no published price list for sauna sessions or entry in the public material, so the honest answer is to treat it as a pay-as-you-go bar with a sauna charge on top. Budget for drinks and food at Copenhagen bar prices, which sit at the higher end of European cities, and expect the sauna to be a separate item.

The practical move is to look at the venue's own site before you travel, because a summer pop-up can change what it charges and what it includes from season to season. The same applies to any package that combines sauna and food. Nothing in the official tourism description suggests a single all-in ticket.

Opening season and timing

VisitDenmark describes Green Island as open during summer, which is the key planning fact. It is a seasonal pop-up, not a year-round fixture, and the harbour baths it sits beside also peak in summer. A winter visit to Kalvebod Brygge will find the water and the city, but not necessarily the island.

Within the season, the busiest times are warm weekends and summer evenings, when both the harbour bath and the bar fill up. Go earlier in the day if you want a barrel sauna without waiting, and accept that the bath itself is a popular public facility with its own crowds. On a grey day you will have more room and a colder walk back to the sauna.

For a winter alternative with a similar floating feel, Winter Island Copenhagen runs a sauna and cold-water setup in the city, and the guide explains how it works when the harbour baths are quiet.

What to bring

Bring swimwear, a towel and something warm to put on after the harbour dip, because the walk between water and sauna is short but the air can be cool even in summer. A dry bag for your phone and clothes is useful on a floating site, and footwear you can slip on and off makes the changing easier.

Changing and drying space on a pop-up island is limited, so travel light and do not count on a locker room like a swimming hall's. Come already changed if you can, and keep valuables to a minimum. The harbour bath next door has its own facilities, but they serve the bath rather than the bar.

One plain safety line covers the rest: stay hydrated, skip alcohol before you go into the heat, leave the sauna if you feel unwell, and ask a doctor first if you have a heart condition or are pregnant. The cold harbour water deserves the same respect as the heat.

Getting there

Kalvebod Brygge runs along the city side of the harbour, within walking distance of Copenhagen's centre and the meatpacking district. The harbour bath is the landmark to aim for, and the island sits beside it, so you do not need a precise address once you reach the waterfront.

The metro and harbour bus both serve this stretch of the harbour, and the walk from the nearest stop is short. For a different approach, the guide to Kastrup sea bath covers the beach on the other side of the city, near Copenhagen Airport, if you are combining a swim with a flight.

Nearby alternatives

The four harbour baths named by VisitDenmark give you options within the city: Islands Brygge on the opposite bank, Kalvebod Brygge next door, and Sluseholmen and Fisketorvet further out. Each has a different feel, and the Fisketorvet Harbour Bath is the one closest to the shopping centre of the same name.

If you want a sauna rather than a harbour swim, Sauna House Nordhavn in the new northern district offers a fixed indoor sauna with sea access, and the Sauna House guide explains the setup. For a floating sauna in the same family as the barrel saunas here, Hot n' Cold Nordhavn is another option worth comparing.

The saunagus tradition of whisking and essential oils is a Danish and German sauna custom rather than a harbour activity; the saunagus guide explains how those sessions run and where to find them in the city.

Plan Your Visit

Green Island Copenhagen works best as a summer afternoon or early evening: a barrel sauna round, a dip in the harbour bath at Kalvebod Brygge, and a drink at the water's edge with the city in view. Go early on warm days, bring swimwear and a towel, and treat the sauna as an add-on to the bar rather than the other way round.

Check the venue's own site once before you travel for the season and booking arrangements, then let the weather decide the rest. If the island is closed, the harbour baths and the city's indoor saunas still make a good day.