Umi Jigoku—literally “Sea Hell”—is the most visually captivating of Beppu’s famed Seven Hells (Jigoku Meguri), a collection of extraordinary hot springs created by intense geothermal activity. Although its water resembles a calm tropical lagoon, the pool boils at around 98°C (208°F). The cobalt-blue color comes from iron sulfate, and early morning steam creates an ethereal, otherworldly scene. The pond is also believed to reach an impressive depth of approximately 200 meters, emphasizing the massive geothermal forces beneath Beppu.

Recognized as a National Place of Scenic Beauty, the site features more than just its main pool. A geothermal greenhouse displays rare tropical plants, including Giant Amazonian Water Lilies that grow exceptionally large during the warm season. A free Ashiyu (foot bath) near the entrance offers visitors a way to safely enjoy the thermal waters. Local favorites like Onsen Tamago and Volcanic Steam Pudding are cooked using natural steam vents. A path lined with bright red torii gates leads to Hakuryu Inari Daijin, adding cultural depth and beautiful photography opportunities. Umi Jigoku also uses its geothermal heat to produce natural bath salts, available in the gift shop.

All Seven Hells of Beppu (Jigoku Meguri):

• Umi Jigoku (Sea Hell): Famous cobalt-blue, 98°C, 200-meter-deep pool.

• Oniishibozu Jigoku: Bubbling gray mud pools resembling shaved monk heads.

• Shiraike Jigoku (White Pond Hell): Milky-white hot spring with dissolved calcium.

• Kamado Jigoku (Cooking Pot Hell): Multiple bright pools with steam cooking demonstrations.

• Oniyama Jigoku (Demon Mountain Hell): Powerful steam vents and resident crocodile breeding area.

• Tatsumaki Jigoku (Tornado Hell): A natural rhythmic geyser. 

• Chinoike Jigoku (Blood Pond Hell): Japan’s oldest natural hell, famed for its deep red boiling clay.

Note: Yama Jigoku is no longer part of the official combo ticket. It remains a private attraction with a mini-zoo (capybaras, hippos, flamingos) and requires a separate ticket.

• From JR Beppu Station, take bus No. 2, 5, or 41 bound for Kannawa. Get off at “Umi Jigoku Mae.” Travel time is about 20 minutes, and the entrance is just a short walk from the stop.
• Rental cars and taxis provide quick and flexible access from central Beppu.

• Visit in the early morning for deeper blue color, lighter steam, and fewer crowds.

• Try steam-cooked snacks for a unique geothermal food experience.

• Don’t miss the free Ashiyu for a relaxing break.

• Combine with nearby hells for a complete Jigoku Meguri itinerary.

• Wear comfortable shoes for the garden paths and gentle slopes.

Admission Fee:

• Single Entry: 500 JPY (Adults) / 250 JPY (Children).
• Jigoku Meguri Pass: 2,400 JPY (Adults) / 1,200 JPY (Children).

Note: The Jigoku Meguri Pass allows one-time entry to all 7 official “Hells” and is valid for two consecutive days.

Opening Time:

• 8:00 AM – 5:00 PM daily