Explore Tokyo Bay Aqua-Line’s undersea marvels and scenic views. Discover Umihotaru’s attractions and engineering feats. Perfect for travelers seeking unique experiences.
Explore Tokyo Bay Aqua-Line’s undersea marvels and scenic views. Discover Umihotaru’s attractions and engineering feats. Perfect for travelers seeking unique experiences.
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Umihotaru - Umihotaru is a parking area situated on an artificial island in the center of the Tokyo Bay Aqualine. Its unique 360-degree sea surroundings create the ambiance of a floating resort.
Highlights and activities at Umihotaru:
Observation deck with breathtaking views
Visitors can enjoy an observation deck with stunning views of Tokyo Bay,…
- Umihotaru - Umihotaru is a parking area situated on an artificial island in the center of the Tokyo Bay Aqualine. Its unique 360-degree sea surroundings create the ambiance of a floating resort.
Highlights and activities at Umihotaru:
Observation deck with breathtaking views
Visitors can enjoy an observation deck with stunning views of Tokyo Bay, including sights of Mt. Fuji, Yokohama’s Landmark Tower, and the Boso Peninsula on clear days.
️ Gourmet Spots
A variety of restaurants and cafes offer popular dishes like seafood rice bowls, ramen, and desserts. Local gourmet specialties are highly recommended.
️ Souvenirs/Shopping
Unique souvenirs are available, including specialty items from Chiba and Kanagawa, as well as exclusive Aqua-Line sweets and goods.
Photo Spot
Numerous photo opportunities exist, such as the “Bell of Happiness” and various monuments and art pieces related to the Aqua-Line construction.

- In-vehicle air conditioning
- Parking fees
- In-vehicle air conditioning
- Parking fees
- Tour insurance
- Tour insurance
The Tokyo Bay Aqua-Line is a 15.1 km expressway that spans Tokyo Bay, linking Kisarazu City in Chiba Prefecture with Kawasaki City in Kanagawa Prefecture. This route features both undersea tunnels and bridges, with approximately 9.5 km of tunnels and 4.4 km of bridges. Opened in 1997, the Aqua-Line has significantly enhanced travel convenience by…
The Tokyo Bay Aqua-Line is a 15.1 km expressway that spans Tokyo Bay, linking Kisarazu City in Chiba Prefecture with Kawasaki City in Kanagawa Prefecture. This route features both undersea tunnels and bridges, with approximately 9.5 km of tunnels and 4.4 km of bridges. Opened in 1997, the Aqua-Line has significantly enhanced travel convenience by enabling direct travel between Kanagawa and Chiba, eliminating the need for a lengthy detour around Tokyo Bay.
① Umihotaru Parking Area: Situated on an artificial island in the center of Tokyo Bay, this parking area is a favored tourist destination offering panoramic ocean views. It includes restaurants, souvenir shops, and an observation deck.
② The extensive tunnel beneath Tokyo Bay was built using cutting-edge civil engineering techniques. Notably, the tunnels constructed with the “shield tunneling method” rank among the largest globally.
For a full refund, cancel at least 24 hours before the scheduled departure time.
For a full refund, cancel at least 24 hours before the scheduled departure time.