Nabben Beach occupies a slender peninsula on Mariehamn's eastern edge, where the Baltic Sea laps gently against a crescent of fine sand. The water here stays shallow for thirty meters out—warm enough by midsummer that you'll see toddlers splashing knee-deep while their parents sunbathe beneath the pines that fringe the shore. Sailboats bob at anchor in the middle distance, their masts tilting with the breeze, and the occasional ferry slides past on its way to Sweden, close enough that you can watch passengers on deck.
“This is the only Baltic beach you can reach on foot from a duty-free shopping district, blending island-town life with genuine swimming culture.”
Crashing wave at sunset
The beach runs narrow but long, with wooden jetties punctuating the shoreline and grassy banks rising behind the sand. You'll find families claiming their usual spots by midmorning, laying out towels on the section where the sun lingers longest. The scent of sunscreen mingles with pine resin, and seabirds call from the rocks that mark the peninsula's tip. A small café sells ice cream and coffee near the entrance, but most visitors bring their own picnics.
What makes Nabben essential is its placement within the rhythm of island life—this is where Mariehamn residents come to swim after work, where teenagers meet on summer evenings, where the town's maritime character meets its need for a quick dip. The beach belongs to the community first, visitors second, and that unpretentious ease is exactly what makes it worth your afternoon.