Marina Flensburg (Niro Petersen): Travel, Harbour Information and Trip Destinations

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Marina Flensburg, still known to many as Marina Niro Petersen, lies on the western shore of Flensburg's inner fjord in the Galwik district, about half a kilometre from the city centre. Here you can read how to get from the airport and the railway station to the marina, where to park and shop, what weather to expect on the fjord, which sailing destinations are close by in Germany and Denmark, and how skippers moor in the marina.

Where is Marina Flensburg located?

The marina is located at Brauereiweg 16 in the north of Flensburg city centre, directly on the western shore of the fjord. It is around half a kilometre to the city centre.

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The harbour is now called "Marina Flensburg". In harbour guides and directories it is often still listed as "Marina Niro Petersen" or "Niro Petersen", sometimes with the addition "Gallwik". Galwik, also often spelt Gallwik, is the name of the district where the marina is located. In all cases it is the same harbour at Brauereiweg 16.

Flensburg has several yacht harbours. The city harbour at the harbour head lies further south, Marina Sonwik on the opposite eastern shore in the Mürwik district. Marina Flensburg is the harbour on the western shore in Galwik.

Arriving at the Marina Flensburg for the start of your trip

The following sections guide you from the airport to the pontoon. Because Flensburg has several harbours, note the address Brauereiweg 16. If you're joining a trip as crew: which marina and which pontoon is shown in your trip documents.

From the airport to Marina Flensburg

The nearest major airport is Hamburg, around 135 kilometres away as the crow flies. From the airport, S-Bahn line S1 runs every ten minutes to Hamburg Hauptbahnhof, taking around 25 minutes. From Hamburg to Flensburg, regional trains run frequently, many of them direct; the fastest connections take just under two hours. On the S-Bahn and train alone you'll be travelling for just under two and a half hours, plus changing in Hamburg and the journey from the station to the marina.

Billund Airport in Denmark is around 105 kilometres to the north as the crow flies. From there, a hire car is usually the simplest choice. Smaller and closer is Sønderborg Airport on the Danish side of the fjord.

By car, train or bus

Flensburg is connected to the German rail network by regional and long-distance trains via Hamburg and Kiel. From the railway station to the marina it is a good three kilometres as the crow flies. With luggage for a week's sailing, a taxi is the most comfortable solution; alternatively, city buses run northwards.

By car, you can reach Flensburg via the A7 from both south and north. In the city, follow the western shore of the fjord northwards to Brauereiweg.

Parking

There are parking spaces for cars and trailers on the marina premises, which are guarded and locked at night.

At night the premises are also locked from the landward side.

Showers and sanitary facilities

There are showers and toilet facilities at the marina, including accessible ones. There are also a washing machine and tumble dryer, and Wi-Fi is available at the berth.

Shopping for the trip

At the harbour itself there is a kiosk with a bread-roll service. The nearest full-range supermarket is a REWE store at Apenrader Straße 48–52, the main road above the harbour. It is about half a kilometre as the crow flies from the pontoons, roughly a ten-minute walk. It is open Monday to Saturday from 7 a.m. to 9 p.m.; it is closed on Sundays. A little further north on the same road there is a discount supermarket.

For a major provisioning shop before a week's sailing, factor in the return journey with heavy bags; by car it's quicker. If you want more choice, you'll find other shops in the nearby town centre. Because the supermarket is closed on Sundays, if your trip starts on a Sunday it's worth shopping on Saturday.

Doctor, pharmacy and emergency services

The nearest pharmacy is Nord-Apotheke at Apenrader Straße 4, at the town end of the same road as the supermarket. Further pharmacies are located in the town centre around Holm and Südermarkt. The emergency pharmacy service can be reached on 0800 00 22833, or from a mobile on 22 8 33.

The Malteser Fördeklinikum St. Katharina, Knuthstraße site (formerly Diako-Krankenhaus), at Knuthstraße 1 in Flensburg has an A&E department.

• 112: ambulance and fire brigade, in Germany and in Denmark
• 116 117: medical out-of-hours service in Germany when GP surgeries are closed
• On the water: Maritime Rescue Co-ordination Centre of the German Maritime Search and Rescue Service (DGzRS) in Bremen, call sign "Bremen Rescue", on VHF channel 16 or by DSC on channel 70, 24 hours also on telephone +49 421 53687-0

Marina Flensburg at a glance

Marina Flensburg has around 120 berths with electricity and water connections. Key figures and facilities at a glance (as at October 2026):

Feature	Details
Harbour	Marina Flensburg (also Marina Niro Petersen)
Address	Brauereiweg 16, Flensburg
Position	54° 48′ 9,4″ N, 009° 25′ 39,7″ E
Harbour master's phone	+49 461 999 347 40
Waters	Flensburg Inner Fjord, west shore
Berths	around 120, with power and water connections
Berth types	Pile boxes, finger pontoons, mooring buoys
Fuel	Diesel
Travellift	up to 20 t
Approach	day and night, buoyed and lit channel in the fjord

At the marina you can exchange gas bottles, and dogs are allowed.

What weather can you expect on Flensburg Fjord?

The inner fjord between Flensburg and Holnisser Enge is well sheltered; on the open outer fjord an uncomfortable sea builds in easterly winds. Beyond the Holnis peninsula the outer fjord begins, opening out to Sønderborg Bay and the Baltic Sea.

For trip planning, this means: for a first leg or a day with strong winds outside, the inner fjord is a good alternative. In strong easterlies the passage out to Denmark or to the Danish South Sea Islands can become uncomfortable, and such a day may well turn into a harbour day in Flensburg.

If you're sailing on the Baltic for the first time as crew, even in summer expect cool evenings and days with rain. Warm clothing and waterproof oilskins belong in every bag, all the more so in spring and autumn.

Which destinations can you reach from Marina Flensburg?

From Marina Flensburg you can reach Danish and German harbours around the fjord in a day's sailing. In two to three days you'll be in the Danish South Sea Islands around Ærø.

The following distances are rounded distances over water on the usual course; for precise planning, consult the chart.

• Glücksburg: about 5 nm, a short passage on the eastern shore of the inner fjord.
• Ochseninseln: around 5 nm, good anchorages on the Danish side.
• Langballigau: about 10 nm, small harbour on the German outer fjord.
• Gråsten: about 10 nm, on the Danish north shore of the fjord.
• Sønderborg on Als: about 17 nm.
• Maasholm at the mouth of the Schlei: about 30 nm.
• Marstal: about 41 nm, Ærøskøbing about 42 nm, both on Ærø in the Danish South Sea Islands.

You should only pass between the Ochseninseln if your boat draws little water.

To the south you reach the Schlei after a few miles; to the north the route leads past Als into the Little Belt. A week's sailing from Flensburg can make a circuit of the Danish South Sea Islands with their small islands. Suggestions for shore visits there can be found in our article about the Danish islands.

We present other harbours on the German Baltic coast in separate profiles: the harbours in Travemünde on Lübeck Bay and the Breege harbour on Rügen.

What is there in Flensburg for a harbour day?

Most destinations for a day ashore you can reach on foot from the marina: the Phänomenta at the Nordertor is just under a kilometre away, the Historic Harbour with the Maritime Museum a good kilometre to the south. For a day with too much or too little wind, these are obvious destinations.

Historic Harbour and Maritime Museum

Traditional sailing ships of the museum harbour lie at the wooden quayside. At the Museumswerft on the Schiffbrücke, historic boats are reconstructed in wood from old plans. The Flensburger Schifffahrtsmuseum at Schiffbrücke 39 presents the history of the port city: merchants' courtyards, shipowners and captains, life on board and the trade in sugar and rum from the West Indies. In the cellar of the old customs house, the Rum-Museum shows how the rum trade shaped the city. Two town trails begin at the museum, the Kapitänsroute and the Rum-und-Zucker-Meile, which lead you further into the old town with its courtyards and shopping streets.

Phänomenta at the Nordertor

The Phänomenta is located directly at the Nordertor, the old city gate on the northern edge of the old town. The hands-on science museum has more than 170 stations to try out, including a walk in total darkness, a tilted room and distorting mirrors. For a rainy day with children on board, this is a good destination.

Museumsberg and Christiansenpark

The Museumsberg lies about two kilometres as the crow flies south of the marina on a hill above the old town. In two historic buildings it displays art and cultural history of the Schleswig region from the Middle Ages to the 20th century. Right next to it lies the Christiansenpark, a landscape garden from the early 19th century, which is ideal for a quiet walk away from the pontoons.

For skippers: Berthing, formalities and marine weather at Marina Flensburg

At Marina Flensburg you berth in pile moorings, at finger pontoons or on moorings. You can reach the harbourmaster on +49 461 999 347 40.

Registration and Berthing

There is a check-in pontoon for visiting yachts: if you do not know which berth is free, moor there first and register ashore.

In a pile mooring you lie between two piles and make fast with the bow or stern at the pontoon. If you go in forwards, as you enter you put the stern lines over the two piles and make fast the bow lines at the pontoon; going in astern it's the other way round. Before entering, prepare lines with large eyes on both sides and hang fenders on both sides. At a finger pontoon you go alongside the narrow pontoon next to your berth. The pontoons are lit, which helps when berthing after dark.

Approach

Approaching the marina is straightforward by day and night: you follow the buoyage and lights of the fjord as far as the pontoons on the western shore. How to read the red and green buoys is explained in our article on Buoyage in the lateral system.

Border with Denmark: Papers and customs

The border between Germany and Denmark runs roughly down the middle of the fjord. Both countries belong to the EU and to the Schengen Area; for passages between German and Danish harbours you do not need any customs formalities as long as you only have goods for personal use on board.

Every crew member needs a valid identity card or passport; children need their own ID. For alcohol and tobacco, EU guide quantities for personal use apply. Denmark may introduce temporary border checks; you will find the current situation in the travel and security advice of the Foreign Office (Auswärtiges Amt), and the quantities for the return journey at German Customs (deutscher Zoll).

Which sea area forecast covers Flensburg Fjord?

For trips departing from Flensburg, the shipping forecast issued by the German Weather Service (Deutscher Wetterdienst, DWD) for the North Sea and Baltic Sea applies, published by the DWD's Marine Weather Service in Hamburg. For the fjord and the routes into the Danish South Sea Islands, the sea areas Western Baltic as well as Belts and Sound are particularly important.

The report describes wind, weather, visibility and sea state for fixed sea areas. In addition, the DWD issues coastal warnings for the German Baltic coast, which warn of strong winds and gales. You can read the current report on the DWD sea weather page; underway you receive it via VHF coast radio.

Before setting out, checking the shipping forecast is part of the routine, because on the outer fjord and in Sønderborg Bay it can blow considerably stronger than in the sheltered harbour. Pay particular attention to easterly winds if your destination lies beyond Holnis.

Boatyard and service

For work on the boat the marina has a travel lift up to 20 tonnes, a slipway and a boat shed. Yard and engine services, chandlery and sailmakers are on site.

Trips from Marina Flensburg on Törnfinder

In October 2026 there are 83 sailing trip dates on Törnfinder over the next twelve months departing from or arriving at Marina Flensburg. Most depart in May, July and June, typically lasting 8 days. An overview of the entire sailing area can be found under Sailing in the Baltic Sea, trips in Danish waters under cabin charter in Denmark.

Frequently asked questions

How do I get from Hamburg Airport to Marina Flensburg?

Take the S1 S-Bahn in around 25 minutes to Hamburg Hauptbahnhof and from there the regional train in just under two hours to Flensburg. From Flensburg station it's a good three kilometres to the marina, most convenient by taxi.

Where do I park at trip start at Marina Flensburg?

In the car parks on the marina premises, which are guarded and locked at night.

Are there showers at Marina Flensburg?

Yes, the marina has showers and sanitary facilities, including accessible ones. There are also a washing machine and tumble dryer.

Where is the nearest supermarket to Marina Flensburg?

A REWE supermarket is at Apenrader Straße 48–52, around half a kilometre or about ten minutes' walk from the pontoons, closed Sundays. Bread rolls are available at the kiosk in the harbour.

Is Marina Niro Petersen the same as Marina Flensburg?

Yes. Marina Niro Petersen is now called Marina Flensburg; it's the same harbour at Brauereiweg 16. "Gallwik" or "Galwik" is the district on the western shore of the fjord where the marina is located.

Is Marina Flensburg in Sonwik?

No. Marina Flensburg is on the western shore of the inner fjord; Marina Sonwik is on the eastern shore in Mürwik. The two harbours are around two kilometres apart as the crow flies; by car you have to go round the harbour head.

Do I need special papers for a trip to Denmark?

You need a valid identity card or passport. Customs formalities do not apply within the EU, as long as you are only carrying goods for personal use.