As of February 2026, the Hakone Open-Air Museum is open and operating on its standard schedule. While the museum occasionally closes specific galleries for maintenance or "installation changes"—particularly the Picasso Pavilion, which underwent a major renovation a few years ago—the sprawling outdoor sculpture park remains accessible to the public year-round. The museum is famous for its 120+ sculptures set against the stunning backdrop of the Hakone mountains and its interactive "Symphonic Sculpture" tower. In 2026, it remains a "must-visit" on the Hakone Round Course. Standard hours are typically 9:00 AM to 5:00 PM. It is a "pro tip" to check their official website the morning of your visit for any temporary "weather-related" closures, as heavy snow or extreme fog in the mountains can occasionally lead to the outdoor sections being restricted for safety. Otherwise, the museum's "hot spring foot bath" and world-class art collection await visitors just as they have since 1969.