Marina Flensburg (Niro Petersen): berths, travel and sailing area

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Marina Flensburg, in harbour guides and directories often still listed as Marina Niro Petersen, lies on the western shore of Flensburg inner fjord, in the north of the city in the Galwik area and about half a kilometre from the city centre. Many trips depart from here, and anyone coming for the first time usually wants to know where exactly the pontoons are, how to travel there without a car and how far it is from here to Denmark and into the Danish South Sea Islands (as of: October 2026).

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.

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.

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

All details: as of October 2026. The number of available visitor berths varies with the season, so please contact the harbour before arrival.

How do you berth at Marina Flensburg?

The marina has pile boxes where you lie between two posts and make fast with bow or stern to the pontoon. There are also berths at finger pontoons and at buoys.

In a pile box, as you enter, you put the stern lines over both posts if entering bow-first, and make the bow lines fast to the pontoon. Entering stern-first, it is 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 moor alongside the narrow pontoon next to your berth. The pontoons are lit, which helps when mooring after dark.

There is a reception pontoon for visiting yachts. For registration you can reach the harbourmaster by telephone on +49 461 999 347 40. If you do not know which berth is free, it is best to moor first at the reception pontoon and sort out the berth ashore.

What facilities does Marina Flensburg offer?

The marina offers everything you need for starting a trip or spending a night as a visitor: power and water at the pontoons, toilet facilities, diesel and a pump-out station.

There are showers and toilets, including accessible facilities, plus washing machine and tumble dryer as well as Wi-Fi at the berth. You can pump out holding tanks and bilge water, empty chemical toilets, exchange gas bottles and dispose of waste separately. At night the site is locked on the landward side.

For work on your boat there is a travellift up to 20 tonnes, a slipway and a boat shed, as well as boatyard and engine services, a chandlery and a sailmaker. Dogs are allowed.

What do you need on your first day aboard, and where do you shop?

You can get bread rolls at the kiosk in the harbour; for a weekly shop, walk about half a kilometre to a supermarket on Apenrader Straße. A pharmacy can also be found on Apenrader Straße, with more in the town centre.

Where is the nearest supermarket?

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 big provisions shop before a week's sailing, allow for the return journey with heavy bags; by car or taxi it is quicker. Anyone looking for more choice will find further shops in the nearby town centre.

Where can you park?

There are car and trailer parking spaces on the marina site, which are guarded and locked at night. Whether parking costs anything, and how much, you can find out directly from the harbour.

Where are there chemists, doctors and A&E?

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.

There is an accident and emergency department at the hospital on Knuthstraße 1 in Flensburg, the Malteser Fördeklinikum St. Katharina, Knuthstraße site (formerly Diako-Krankenhaus). Outside surgery hours you can reach the on-call medical service on 116 117.

Which emergency numbers apply?

Ashore in Germany and Denmark, dial 112 for ambulance and fire services. On the water you can reach the sea rescue coordination centre of the German Maritime Search and Rescue Service (DGzRS) in Bremen on VHF channel 16 or by DSC on channel 70, call sign "Bremen Rescue", and around the clock by telephone on +49 421 53687-0. Write these numbers on a note by the chart table before you cast off.

How do you get to Marina Flensburg?

By train you travel to Flensburg and take a taxi or city bus for the final three kilometres or so. The nearest major airports are Hamburg and Billund in Denmark.

By train

Flensburg is connected to the German rail network by regional and long-distance trains via Hamburg and Kiel. From the station to the marina is a good three kilometres as the crow flies. With luggage for a week's trip a taxi is the most convenient solution, alternatively city buses run northbound. Lines and timetables change, so use the Deutsche Bahn journey planner before travelling.

By air

From Hamburg Airport (around 135 kilometres as the crow flies) you take the S-Bahn to the main station and from there the train to Flensburg. Billund Airport is around 105 kilometres as the crow flies to the north in Denmark, from where a hire car is usually the easiest choice. Smaller and closer is Sønderborg Airport on the Danish side of the fjord.

By car

Via the A7 you can reach Flensburg from the south as well as from the north. In the city you follow the west shore of the fjord northbound to Brauereiweg.

What is the sailing area on Flensburg Fjord like?

Flensburg Fjord divides into the sheltered inner fjord between Flensburg and the Holnis peninsula, and the open outer fjord towards Sønderborg Bay and the Baltic Sea. For a first leg or a day with strong winds outside, the inner fjord is a good alternative.

The inner fjord up to Holnis Narrows is well sheltered. On the outer fjord an unpleasant sea builds up in easterly winds. The approach to the marina is straightforward day and night: you follow the buoyed and lit channel in the fjord to the pontoons on the west shore. How to read the red and green buoys is explained in our article on Buoyage in the lateral system.

North of Flensburg on the Danish side lie the Ochseninseln (Oxø) with good anchorages. You should only sail between the islands if your boat draws little water.

What applies at the border with Denmark?

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. When 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.

What trip destinations lie near Flensburg?

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

The following distances are rounded sea routes from the harbour on the usual course. The actual distance by sea is longer, especially for destinations beyond Holnis and round the Broager peninsula.

• Glücksburg: about 5 nm, a short passage on the eastern shore of the inner fjord.
• Ox Islands (Ochseninseln): around 5 nm, 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.

To the south you reach the Schlei after a few miles; to the north the route leads past Als into the Little Belt. Many week-long trips from Flensburg do a circuit through the Danish South Sea Islands with their small islands. Suggestions for shore excursions 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 alongside the wooden quay. In the museum shipyard at the Schiffbrücke, historic boats are reconstructed in wood according to old plans. The Flensburg Maritime Museum at Schiffbrücke 39, about a kilometre from the marina, shows the history of the port city: merchant courtyards, ship-owners and captains, life on board and the trade in sugar and rum from the West Indies. In the cellar of the old customs building, the Rum Museum shows how the rum trade shaped the city. Two town walks begin at the museum, the Captain's Route and the Rum and Sugar Mile, which lead you further into the old town with its courtyards and shopping streets.

Phänomenta at the Nordertor

The Phänomenta lies directly at the Nordertor, the old city gate at the northern edge of the old town, about 800 metres as the crow flies from the marina. The hands-on science museum has more than 170 interactive stations, 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.

Trips from Flensburg on Törnfinder

On Törnfinder you will find many trips that start in Flensburg, from weekend trips on the fjord to a tour through the Danish South Sea Islands. All current offers are listed in the trip overview. You can get an overview of the whole sailing area under Sailing in the Baltic Sea, trips in Danish waters under cabin charter in Denmark.

Frequently asked questions

What does "Gallwik" mean in connection with Marina Flensburg?

Galwik, often also written Gallwik, is the Flensburg district on the western shore of the fjord where the marina is located. Older names such as "Marina Niro Petersen (Gallwik)" refer to the same harbour at Brauereiweg 16, today's Marina Flensburg.

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.

How do I berth at Marina Flensburg?

In dolphin boxes between two piles, with lines over the piles and to the pontoon. In addition there are finger pontoons and mooring buoy berths. For visitors there is a reception pontoon.

Where is the nearest supermarket to Marina Flensburg?

A REWE supermarket is located at Apenrader Straße 48–52, about half a kilometre or roughly ten minutes on foot from the pontoons. Bread rolls are available at the kiosk in the harbour.

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.