Långrevsudden

Långrevsudden is an intermediate dive site on Sweden's High Coast, the Höga Kusten, a UNESCO World Heritage area in the northern reaches of the Swedish Baltic coastline. Located in the Ångermanland region where the post-glacial land uplift has created some of the most dramatic coastal scenery in Scandinavia, this site offers divers access to an underwater environment shaped by powerful geological forces operating over thousands of years. The High Coast is famous above water for cliffs, deep inlets, and islands that have risen from the sea at a rate unmatched anywhere else in the world since the last ice age. This ongoing isostatic rebound continues to reshape the coastline, and diving at Långrevsudden provides a unique perspective on these geological processes as seen from beneath the surface. Rocky formations that were once deeper underwater have gradually risen, and the current underwater terrain reflects this dynamic geological history. The dive reaches a maximum depth of twenty meters along a rocky reef that extends from the shore into the Baltic. The intermediate rating reflects the combination of moderate depth, potential current exposure, and the cold conditions typical of this northern latitude. Water temperatures in the northern Baltic are cold even by Swedish standards, and adequate thermal protection is essential for comfortable diving. The underwater landscape at Långrevsudden features the smooth granite and gneiss formations characteristic of the High Coast. These ancient rocks, among the oldest in Europe, create walls, ledges, and boulder fields that provide habitat for the Baltic marine community. The low salinity of the northern Baltic limits the diversity of marine organisms compared to the west coast, but the species present have adapted remarkably to these challenging conditions. Bladderwrack and other algae dominate the shallow rocky zones, creating important nursery habitat for fish and invertebrates. Perch, the most common predatory fish in the northern Baltic, patrol the reef edges, while pike lurk in ambush positions among the rocks and vegetation. Freshwater species mix with marine organisms in the very low salinity conditions of this northern section, creating an ecological community that is uniquely Baltic. The site offers excellent opportunities for observing the geological features that earned the High Coast its UNESCO status. Smoothed and polished by glacial action, the underwater rock surfaces display the same dramatic sculpting visible on the land above. Erratic boulders deposited by retreating glaciers sit on the seabed, transported from locations sometimes hundreds of kilometers away. Långrevsudden is a dive site that rewards curiosity about the natural world beyond just marine biology. The combination of geological significance, unique Baltic ecology, and the wild beauty of Sweden's northern coast creates a diving experience that is as educational as it is beautiful. For divers exploring beyond the more popular west coast and Stockholm archipelago, the High Coast offers a truly distinctive underwater adventure.