Umi Jigoku

Umi Jigoku, known as 'Sea Hell,' is one of Beppu's most famous geothermal hot springs, renowned for its striking, boiling cobalt-blue waters and dense billowing steam. Despite resembling a serene ocean or an otherworldly neon-blue planet, the sulfur pool is scorching hot and framed by lush tropical garden grounds.

Commenters expressed deep admiration and nostalgia for Japan's scenic sights, frequently noting that locations like this inspire repeat visits or romantic getaways. While viewers are eager to visit Oita Prefecture and actively seek itinerary advice, some mentioned financial constraints as a barrier to traveling.