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[ Umihotaru ] Rest Stop in the middle of Tokyo Bay

When you drive from central Tokyo to Chiba direction, you will go through the expressway ” Tokyo Aqua Line “. This toll road is going through under the sea – then this world’s only rest area appear in the middle of ocean!

This unique parking facility attracts about 20,000 people a day. ( Opened in 1997, then partly renovated 2019)

Many kinds of restaurants, shops, amusement arcade, toilets, and observation deck – I suggest to plan about 30min – 1 hour just to enjoy this unique spot during your drive!


It’s in between Kawasaki and Kisarazu. About 30min by car from Kawasaki IC.

*Need express toll, price differ by car type & ETC
*You can go there only by car, no train.

Umihotaru PA (Official website)

Address : Umihotaru, Nakajima Chisaki, Kisarazu city, Chiba prefecture, Japan, 292-0071 (Link to Google MAP)

Observation deck

Restaurant & Cafe

Toilet & Nursing room


You must know this Tokyo Aqua-line expressway would be jammed always in the morning and early evening.

Especially worse in the weekend,,, so avoid 8-10:00 and 16-18:00 as much as you can.

We try leave very early in the morning when we use Tokyo Aqua-line.

Related articles:

Boat Tour Around Tokyo Bay

[ YURIKAMOME ] Cool monorail around Tokyo bay

4 BEST Aquariums in central Tokyo, Japan

*All aerial shots are from web site

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