Masuura Beach unfolds along Abashiri's eastern shore, a working waterfront where function trumps polish. The sand runs charcoal-dark, fine-grained basalt that clings to your feet and warms under rare summer sun. Tetrapods march into shallow water, placed decades ago to buffer winter storms and the famous ryuhyo—drift ice sheets that sail down from Russia's Amur River between late January and March, transforming the beach into a jagged white frontier.
“One of Japan's few beaches where drift ice arrives annually, letting you walk on frozen seawater beside dark sand.”
Credit: UnsplashCrashing wave at sunset on the shoreline
Families from Abashiri claim the same spots weekend after weekend: near the low-slung restroom building, beside the playground with its sun-faded swings, under the sparse pines that offer the only shade. Children wade ankle-deep in water that never rises above 15°C, even in August, shrieking at the cold. Fishermen mend nets on the upper beach, their skiffs resting on trailers between tides. The air tastes of kelp and diesel.
You won't find rental umbrellas or beach bars. Instead, convenience-store onigiri and thermoses of barley tea emerge from cooler bags. The view stretches north toward the Shiretoko Peninsula's hazy spine, south to Abashiri Port's cranes. Come winter, when ice floes blanket the sea, you can walk out onto the frozen chaos, crunching through ridges that groan and shift with the tide—an experience that erases any memory of tropical shores.
