A large whale spotted close to a Danish bathing jetty highlights a regulatory gap: Denmark has no whale-specific, distance-based safety rules for swimmers or boaters who encounter a multi-ton marine mammal, despite binding nature-protection law already in force.
The recent sighting in Øresund, where a whale surfaced near a bathing jetty and triggered urgent warnings, underscores how unprepared formal guidance remains for close marine encounters. According to a 2022 report commissioned by Miljøstyrelsen and produced by DTU Aqua, only a few dozen organized whale-watching trips targeting large whales were recorded nationwide in 2021 and 2022 combined. For comparison, Iceland attracted hundreds of thousands of whale-watching tourists per year in peak pre-COVID seasons.
That disparity explains why Denmark still lacks the kind of structured guidance internationals expect. Unlike Norway and Iceland, Denmark has no dedicated whale-watching licensing regime and no public regulations specifying meter-based approach distances. The DTU Aqua report explicitly flags a lack of common guidelines for safe viewing distances and disturbance thresholds in Danish waters.
No whale-specific rule book for bathers
For expats living along beaches in Øresund or Lillebælt, the warning to hold afstand often arrives as a short Danish alert or TV clip with little detail in English. Denmark has no binding national regulation fixing explicit meter distances for whales, though several EU member states have issued regional approach-distance guidelines of their own.
The DTU Aqua report recommends a minimum 100 meters as a pragmatic benchmark. It also proposes modeling Denmark’s eventual rules on international best practice, including bans on positioning boats closer than 300 meters in front of a whale’s path. None of this is codified in Danish law yet.
Binding nature-protection law and the EU Habitats Directive already prohibit intentional disturbance and harm to cetaceans. But without explicit whale-specific distance guidance, curious bathers and paddleboarders may unknowingly breach those protections simply by approaching too close. The DTU Aqua report notes that even non-aggressive whales pose collision risks, as a surfacing animal can overturn kayaks or injure swimmers through sheer mass and tail movement.
Rare but rising whale encounters
Large whale sightings in nearshore Danish waters have visibly increased over the past 10 to 15 years. Observations compiled by Naturbasen and the citizen-science Facebook group Hvaler.dk show humpback and fin whales, once exceptional, now recorded multiple times in Øresund, Lillebælt and nature areas along the North Sea approaches.
Hvaler.dk logged a humpback whale spending several hours in Øresund in 2023, with descriptions of resting behavior and tail slaps visible from shore. That pattern mirrors what bathers witnessed from the jetty this week. Yet public safety guidance has not kept pace with the frequency of encounters.
According to the DTU Aqua report, Denmark counts around 18 marine mammal tour operators with 8,000 to 10,000 total participants per year, but most tours focus on seals in Vadehavet. Large whales are only sporadically targeted when they appear. Using the midpoint figure of roughly 9,000 participants annually, that translates to about 1.5 participants per 1,000 residents, according to Statistics Denmark population data.
Enforcement and language gaps
The absence of whale-specific rules means no clear enforcement of meter-based distances. Policing precise approach limits for casual swimmers and kayakers would prove difficult even if regulations existed. The DTU Aqua report notes concerns among small-boat operators and anglers that strict distance rules could restrict access to fishing grounds whenever whales are present.
The same report acknowledges worries among tourism stakeholders that over-regulation could stifle a niche that remains commercially modest. Marine biologists counter, as cited in the DTU Aqua report, that close pursuit by boats, drones or swimmers can cause stress, disrupt feeding and resting, and constitute harassment under the EU Habitats Directive.
For internationals, the most immediate advice remains straightforward: exit the water calmly if a large whale appears within tens of meters. Avoid loud noises and never position yourself in front of the animal’s likely path. According to NOAA Marine Life Viewing Guidelines, boaters should reduce speed, keep parallel rather than directly behind or ahead, and limit encounter time to around 30 minutes.
Crowd-sourced early warning
In the absence of official multilingual alerts, citizen-science platforms serve as practical early-warning resources. Naturbasen allows users to upload photos and locations of whale sightings, and the Hvaler.dk Facebook group shares whale and seal observations. Both interfaces are primarily in Danish but remain usable for non-speakers through maps and photos.
Local municipalities and police districts share marine safety alerts via social media. Expats should follow their kommune and local police on Facebook or Instagram to catch distance warnings as they appear. Miljøstyrelsen holds overall responsibility for marine nature protection but provides limited English-language material on whale encounters.
Until Denmark adopts whale-specific regulations, individuals must navigate both binding conservation law and physical safety risks with limited official English-language guidance. For internationals accustomed to highly commercialized whale tourism elsewhere in the Nordics, the Danish situation is unusual: encounters remain rare, whale-tour infrastructure minimal, and detailed public guidance largely absent. The Øresund jetty sighting may prompt long-overdue action, but for now the DTU Aqua report’s recommended 100-meter minimum exists only as expert advice, not law.
