Kastrup Sea Bath (Kastrup Søbad)

Kastrup Sea Bath, known in Danish as Kastrup Søbad, is a public sea bath at Amager Strandvej 3, 2770 Kastrup, on the Øresund coast of Amager island in Copenhagen, Denmark. The structure is a circular wooden bathing platform built on stilts out in the sea, reached by a boardwalk, and it includes a diving tower. Its open-air, seaside setting gives it a distinctive, almost sculptural presence on the waterfront, and it has become one of the best-known swimming spots in the Copenhagen area. Entry is free, and the ambience is relaxed and communal, with swimmers, families and sunbathers sharing the platform.

It is not a spa in the conventional sense. There are no treatments, therapists or booked sessions; the offering is swimming and diving in the sea, with the wooden platform providing a place to enter the water, sunbathe and dive. The signature feature is the sea pool on stilts, which gives access to deeper water than the nearby beach while keeping bathers within a defined, enclosed area. The diving tower is a draw for confident swimmers, while the platform deck suits those who prefer to sit and watch the Øresund. Changing rooms and toilets are open seasonally and are closed from September to May, so visitors outside the summer months should plan to arrive prepared and avoid relying on facilities.

The bath is open at all times, which also allows early-morning and winter swimming for Danish cold-water enthusiasts, although the water temperature outside summer is very cold and the absence of open changing facilities makes preparation important. A visit typically lasts one to three hours. There is no booking and no entry fee, so the experience is spontaneous. Visitors should be aware that there is no lifeguard service stated in the reference material, so swimmers should assess conditions, wind and water temperature for themselves, and children need close supervision.

Kastrup lies close to Copenhagen Airport, and the metro and bus connections make it easy to reach from the city centre, which also makes it a convenient place for a swim before or after a flight. Nearby, the Amager coast offers walking and cycling routes, and the neighbouring Kastrup area has cafes and the Øresund views toward Sweden. Bring a towel, sun protection in summer and warm clothes for after the swim.