Spa World - The World's Largest Hot Spring

Spa World is a massive, multi-story thermal resort in Osaka featuring themed baths modeled after European and Asian countries. Spread across gender-segregated zones that rotate monthly, it offers everything from a Roman amphitheater pool to a traditional Japanese open-air bath. It is highly worth visiting for its sheer scale, 24-hour access, and the unique chance to experience global bathing cultures all under one roof.

• Category: Onsen
• City: Osaka
• Address: Japan, 〒556-0002 Osaka, Naniwa Ward, Ebisuhigashi, 3-chōme−4−４ スパワールド世界の大温泉