Teuri Island, Hokkaido: Japan's Best-Kept Birding Secret (Complete 5-Day Guide)
Teuri Island — Japan's Best-Kept Birding Secret Hokkaido, Japan · June 2025 Teuri Island 天売島 Japan's Best-Kept Birding Secret — A Complete 5-Day Guide By @genobear · genogoesplaces Scroll I'd been researching off-the-beaten-path destinations in Japan for months when I stumbled across a small island off the coast of Hokkaido that almost nobody outside Japan knows about. An island where over one million seabirds nest every summer. Where the sky turns black at dusk with hundreds of thousands of Rhinoceros Auklets flying home. Where you can stand on a 90-metre cliff and watch Spectacled Guillemots launch themselves into the Sea of Japan below. That island is Teuri Island — 天売島 — and it completely exceeded every expectation I had. This is my full trip report and itinerary from June 26–30, 2025. Everything here is based on real bookings, real prices and real experiences. No fluf...