
Photo: Abdellah Ihadian
Copenhagen Harbor is on a daily basis filled with everything from harbor buses to kayakers and swimmers. According to City and Port, there are 6,000 members of kayak and rowing clubs, 200 stand up paddle boards and 600,000 annual users of the harbor buses. There is therefore no doubt that Copenhagen Harbor is a well-visited urban space that is becoming increasingly attractive. In an area that has so much traffic, it can be difficult to know what you can and can't do. Find out more about the various rules in Copenhagen Harbor for your own safety and that of others.
The harbor in Copenhagen has for many years formed the framework for a blue urban space to the great delight of locals and tourists. Every year, a multitude of opportunities for recreational experiences on the water are offered, such as music events, art, sustainable initiatives, food experiences, guided tours and much more. From being an industrial port where, among other things, coal was shipped, the port now oozes with human life and activity on and near the water.
In Copenhagen Harbor, you share the water with:
It can be difficult to know what you can and cannot do when you are in Copenhagen Harbor. There are different rules, depending on how you use the harbor. It becomes even more difficult to navigate as many of the daily users do not know the rules either and therefore act according to their own needs rather than the safety rules.

Bonus info: Recreational vessels equipped with an engine and/or sails must be provided with name and home port or other identification marks of an appropriate size, but at least 50 mm. in height and placed in a visible place so that it can be identified from land.
Right-of-way and placement: As a general rule, all vessels in the harbor whose depth is not a hindrance, must keep to the right. If a ship crosses one of the harbor runs, this must be done with the utmost caution so that dangerous situations do not arise with the risk of collisions with other vessels.
For a further explanation of which traffic rules apply in the port, the port regulations can be read here.

Several of the city's politicians have a strong desire to increase safety in the harbors. A unanimous Citizens' Representation has adopted a new proposal to strengthen the safety measures of all stakeholders in the harbor. This means that Copenhagen Municipality, City & Port and the police must work together to find a solution that better equips Copenhageners to navigate the waterways. As part of the proposal, the tour boats, harbor buses, sailing clubs, rowing and kayaking clubs and boat hire companies such as GoBoat must also be involved in discussing new measures.
A number of measures have already been put in place to increase safety. In the high season there are e.g. harbor hosts who sail around the harbor to help and guide the many users. In addition, the police, the Emergency Management Agency and the Municipality of Copenhagen meet in a Safe Harbor Committee, where they continuously discuss the various challenges in the harbor.
Read more about traffic lights and signs in the harbour
The big yellow harbor buses might be the greatest danger to soft users. They sail across the entire harbor and it can be difficult for them to see all the little users moving around in random places. The harbor buses have therefore been given the opportunity to report so-called near-miss accidents. For example, there may be situations where bathers are in the way at a stop, and thus a dangerous situation arises. By putting an extra effort into the fight for increased safety, it is hoped that it will minimize similar situations. It has also been discussed whether to completely move some of the stops that are located close to areas where bathers can get lost.
There are a number of rules in Copenhagen Harbor, but there is as such no one who has authority over the seas in Denmark. However, it is the Danish state that has sovereignty over the sea territory. This means that the Supreme Court has the right to regulate the use of the sea. The Port of Copenhagen is administered by City & Port and it is therefore they who set the rules for traffic and use of the harbor. You can read the Harbor Regulations here.
City & Port is responsible for port operations in Copenhagen Harbor, and thus the maintenance of a 42 km long quay. They are tasked with managing the harbor's water area, where they must keep the harbor clean so that it is available to the many users. City & Port is therefore also tasked with determining the rules of conduct. You must therefore apply for permission from City & Port if you want a docking space or if you want to host an event. City & Harbour is 95% owned by Copenhagen Municipality and 5% by the state.
Read more about waste in Copenhagen Harbour
The Municipality of Copenhagen and By & Havn are focused on the enormous recreational potential of Copenhagen Harbor. With the vision ‘A harbor of opportunities, the municipality sets the agenda for new development opportunities. A harbor of possibilities focuses on the following 8 themes:
The police are one of the stakeholders who play an important role in maintaining peace and order in the harbor. Until 2017, however, they were dependent on the Marine Home Guard when they had to sail around. But in the summer of 2017, the police put their own boat into use, so that they can be more visible on the water. In addition, the police are always present at large events in and around the harbor. The police boat is always, as a minimum, manned by one captain and two people from the local police.
Read more about renting a boat in Copenhagen
As part of the previously mentioned focus on increasing safety in the harbor, City & Port is taking a closer look at changing the Harbor Regulations in order to give the police more authority to issue fines. Although fines do not necessarily equate to compliance with the harbor rules, the hope is that it will trigger a change in behavior.
The Harbor Master is the highest authority in Copenhagen Harbor. The position is currently held by Christian Kopp Pedersen. The role comes with a great deal of responsibility with the supervision of traffic and sailing in the port, as well as that the rules are obeyed. As a harbor officer, you have an additional broad palette of tasks, ranging from shipping, trade, service, waste to working with pollution.
Some of the areas in the harbor are administered by The Danish Armed Forces. This applies to the water areas at Holmen, Nyholm, Frederiksholm and Arsenaløen. Parts of the harbor are therefore marked with yellow buoys where it is forbidden to enter. If you still sail in there without a permit, it can trigger a fine.
There are still military areas on Holmen (an old common term for the areas in Copenhagen where the Navy's ships were partly built and partly equipped, maintained and repaired).
Where can you swim in Copenhagen Harbour?
There are 3 harbour baths and 11 bathing zones in Copenhagen Harbour (November 2026):
- Islands Brygge (harbour bath)
- Fisketorvet (harbour bath)
- Sluseholmen (harbour bath)
- Byskoven (bathing zone)
- Halfdansgade (bathing zone)
- Havnegade (bathing zone)
- Havnevigen (bathing zone)
- Kalvebod Bølge (bathing zone)
- La Banchina (bathing zone)
- Vandtrappen at Richard Boones Vej (bathing zone)
- Sandkaj (bathing zone)
- Svaneknoppen (bathing zone)
- Søndre Refshalebassin (bathing zone)
- Teglholm Brygge (bathing zone)
See the current list from the City of Copenhagen.
How fast is it allowed to sail?
In Copenhagen Harbour you may sail up to 6 knots in the main harbour channel and 4 knots in the side channels and canals. Many rental boats have a top speed of 4 knots.
Why is it not allowed to dive in the harbour?
There is too great a risk for both divers and vessels if diving in the harbor was allowed. Although it is a legal requirement to dive with a diver's flag and marking buoy, it is still too risky to do so in the Copenhagen Harbor, where the vessels do not necessarily spot the divers.
Where can you sail SUP in Copenhagen?
You may SUP throughout Copenhagen Harbour. If you are going between the main harbour and Nordhavn, however, you must use a special route in Kronløbet because of the construction work at Lynetteholm. Read more at By & Havn.
Who decides the rules in Copenhagen Harbour?
The Copenhagen Harbour is administered by the City Port, who are also the ones who have set the rules for the area on and near the water. Read more about rules and who helps enforce them here.