Neptune Challenge
- Jun 26, 2027
- Distance: 1.5km
At a glance
- Next edition date
- June 26, 2027
- Distances
- 1.5 km
- Where
- Sea · Amager Strandpark, Copenhagen, Capital Region, Denmark
- Entry fee
- 1.5 km: 900 DKK · 1.5 km: 1100 DKK · 1.5 km: 1300 DKK · 1.5 km: 1500 DKK · 1.5 km: 1700 DKK
- Registration
- neptunechallenge.dk
About the race
The Neptune Challenge is a unique open water endurance event inspired by long-distance swimming and the backyard ultra-running phenomenon. It tests physical and mental endurance, strategy, and determination by requiring participants to swim 1.5 km every hour for their chosen duration.
Swimmers can choose to challenge themselves for 42, 30, 24, 12, or 6 hours. The event takes place at Amager Strandpark in Copenhagen, offering a sea environment with top safety, music, and a joyful atmosphere. Participants are expected to bring their own nutrition and relevant equipment to swim through days and nights.
Course
The event takes place in the sheltered waters of Amager Strandpark, Copenhagen. The format consists of a 1,500-metre swim starting every hour.
Useful info
Backyard ultra-style endurance race. Requires autonomous management of nutrition and equipment. Takes place on June 26-27, 2027. Registration via the official website. Strong mental and physical preparation is required for repeated swimming day and night.
How to get there
The Neptune Challenge takes place in Copenhagen. Airport: CPH (Kastrup), 8 km from the city center. Central Station: København H, well-connected by regional trains and metro. The race venue is accessible by bike or metro (line M2/M3). Parking is limited in the city center; public transport or bike sharing is recommended.
Neptune Challenge
Frequently asked questions
- When is Neptune Challenge?
- Neptune Challenge takes place on June 26, 2027.
- What distances does Neptune Challenge offer?
- Neptune Challenge has a single distance: 1.5 km.
- How much is the entry fee for Neptune Challenge?
- Entry fees by distance: 1.5 km: 900 DKK · 1.5 km: 1100 DKK · 1.5 km: 1300 DKK · 1.5 km: 1500 DKK · 1.5 km: 1700 DKK. Registration details and pricing are managed via the official website: https://neptunechallenge.dk
- Where does Neptune Challenge take place?
- Neptune Challenge is a sea swim. Location: Amager Strandpark, Copenhagen, Capital Region, Denmark.
- How do I register for Neptune Challenge?
- The reference page for registering for Neptune Challenge is https://neptunechallenge.dk/.
Where to stay
Copenhagen offers a diverse range of stays, from modern boutique hotels in the harbor districts to functional hostels near the city center. For those preferring a connection to the water, the Amager district features contemporary apartments and guesthouses. Prices typically range from €120 to €250 per night, depending on proximity to the coast and the level of service. Swimmers often opt for accommodations with kitchen facilities to manage the specific nutritional requirements of a multi-hour endurance challenge. Find your ideal base for the race in our local lodging guide.
Things to do nearby
The weekend in Copenhagen is well-suited for active recovery and cultural exploration. Visitors can explore the city’s maritime history through guided kayak tours that navigate the same channels used by the historical navy, or visit the museums centered around the former fortress of Slotsholmen. For a change of pace, the city offers extensive cycling networks and harbor baths that allow for a unique vantage point of the architecture. Discover more ways to spend your time off-course in our curated activities section.
Swimmers
What to see around
1. Tivoli Gardens (historic park), 2. Nyhavn (iconic harbor), 3. The Little Mermaid statue, 4. Amalienborg Palace, 5. Kayak tour of the city canals (ideal for athletes).
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