Unkai Terrace Tomamu (Panoramic Sea of Clouds Sky Resort)

Category: Alpine Phenomena & Mountain Skywalk | Location: Hokkaido

Perched dramatically at an altitude of 1,088 meters on the shoulders of Mount Tomamu in Shimukappu Village, the Unkai Terrace ('Sea of Clouds Terrace') at Hoshino Resorts Tomamu is Japan's most acclaimed aerial natural phenomena destination. Originally conceived when off-duty ski lift maintenance engineers marveled at the sublime morning cloud formations carpeting the valley below, this skyward sanctuary has evolved into a world-famous architectural wonder offering breathtaking bird's-eye views above rolling oceans of billowing white clouds. The extraordinary 'Unkai' phenomenon is generated by a rare combination of central Hokkaido's subarctic topography and oceanic air masses drifting inland from the Pacific across the Hidaka Mountains. Between May and October, nocturnal radiative cooling and coastal winds cause thick stratus clouds to spill through mountain passes like a colossal, silent waterfall. Guests board the 13-minute Unkai Gondola at dawn, gliding upwards through dense morning mist to emerge into brilliant sunshine above the cloud deck. The sensory adventure at Unkai Terrace is elevated by the visionary 'Cloud9' architectural installations designed to immerse visitors in cloud-walking sensations. Highlights include the 'Cloud Walk,' an exhilarating curved cantilevered sky-bridge extending out over the mountain precipice with 210-degree panoramas; the 'Cloud Pool,' a massive cloud-shaped suspended hammock where visitors can recline directly above the abyss; and the sky-high 'Cloud Bar.' Guests can relax at the indoor Kumo Cafe, savoring steaming hot coffee topped with whimsical fluffy cloud-shaped marshmallows.