Scheduled to open in late 2026 in Kowakudani within Fuji-Hakone-Izu National Park, THE MITSUI HAKONE, a Luxury Collection Hotel & Spa is planned for a forested site linked to former Mitsui family villas. The 126 rooms will average around 60 square metres, with larger villas and a presidential suite, and natural hot spring water is planned for every room as well as the thermal spring facilities. Yabu Pushelberg leads the interior design, with restaurants, bar, fitness and wellness spaces positioned around Hakone's woodland, waterfalls and mountain views.