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Address: Nakajimachisaki Umihotaru, Kisarazu 292-0071, Chiba Prefecture
Name/address in local language
Phone Number: +81 438-41-7401

TripAdvisor Reviewer Highlights

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Firefly Over the Sea

We visited Umi-hotaru (sea-firefly) as a part of a bus tour. It’s a parking service area located on the Tokyo Aqua Line. We enjoyed a great view of Tokyo Bay and the fresh sea... read more

4 of 5 starsReviewed July 22, 2016
Adelaide, Australia
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426 Reviews from our TripAdvisor Community

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Showing 15: English reviews
Adelaide, Australia
Level Contributor
372 reviews
267 attraction reviews
common_n_attraction_reviews_1bd8 119 helpful votes
4 of 5 stars Reviewed July 22, 2016

We visited Umi-hotaru (sea-firefly) as a part of a bus tour. It’s a parking service area located on the Tokyo Aqua Line. We enjoyed a great view of Tokyo Bay and the fresh sea breeze.

Thank RayParks
Level Contributor
5 reviews
common_n_attraction_reviews_1bd8 2 helpful votes
5 of 5 stars Reviewed May 6, 2016 via mobile

Quite an enjoyable trip! As an additional benefit you can also talk to that man about that dog looking at the ocean.

Thank Fedor S
Emirate of Dubai, United Arab Emirates
Level Contributor
111 reviews
87 attraction reviews
common_n_attraction_reviews_1bd8 46 helpful votes
3 of 5 stars Reviewed April 21, 2016

We were told about this 9.5 kms long tunnel within the sea. So we went to see this. Also it was noon time and we were informed about the good restaurants at this place. We had our lunch and then had few photo stops at this place. They have also kept the huge semi circular blade on display which was... More 

Thank SathyanathS
Pune, India
Level Contributor
35 reviews
9 attraction reviews
common_n_attraction_reviews_1bd8 13 helpful votes
5 of 5 stars Reviewed February 14, 2016

Its a manmade island connecting 2 towns in Tokyo sub burbs. The place is definitely a must visit, there is a under sea tunnel on one end and a bridge other side of the island. The place has a small museum which explains how this island is made, café and some shops to spend your day.

Thank sujaysup
Level Contributor
5 reviews
4 attraction reviews
common_n_attraction_reviews_1bd8 3 helpful votes
5 of 5 stars Reviewed October 1, 2015 via mobile

They say the fun lies in the journey. This is totally apt for Umihotaru. To reach there you either go by the 9km under-sea tunnel or by the 6 km highway on water. Either way it is very exciting to travel in it. The spot itself has not much entertainment but is a good resting point and the technology in... More 

Thank Aniket P
Tokyo, Japan
Level Contributor
88 reviews
57 attraction reviews
common_n_attraction_reviews_1bd8 32 helpful votes
5 of 5 stars Reviewed September 21, 2015

In the middle of the Tokyo bay this parking area is the cener point of a unique connecting road Aqua line in between Kawasaki & Chiba. On one side half the connector is a bridge while the other half is a tunnel under the sea! It has got various restaurants & souvenir shops. On a sunny day the view is... More 

Thank hasanarif
Level Contributor
432 reviews
236 attraction reviews
common_n_attraction_reviews_1bd8 141 helpful votes
5 of 5 stars Reviewed August 18, 2015

The driver of our private transfer who was taking us from Narita Airport to Yokohama stopped the van at this huge parking structure and told us to get out and follow him. We did not know what was going on and why we stopped so we just followed. He lead us up a couple of flights on the escalator and... More 

Thank ROCruiser
Level Contributor
33 reviews
30 attraction reviews
common_n_attraction_reviews_1bd8 8 helpful votes
3 of 5 stars Reviewed July 6, 2015

As a parking area of highway, souvenir shop was lively.Perhaps, as the noon draws near, it gets crowded. So early morning is best time to visit. A loquat softcream was a unique gourmet.

Thank 246age
Level Contributor
65 reviews
47 attraction reviews
common_n_attraction_reviews_1bd8 29 helpful votes
4 of 5 stars Reviewed May 10, 2015 via mobile

There is a parking area on a road in Tokyo Bay. It looks like a big ship. We can enjoy 360 degree view. There are many shops and restaurants. I was impressed by a 14m cutter face ,which was used to make a tunnel under the sea.

Thank Yo-Chan1
Burlingame, California
Level Contributor
37 reviews
5 attraction reviews
common_n_attraction_reviews_1bd8 22 helpful votes
4 of 5 stars Reviewed March 27, 2015 via mobile

There is not a whole lot to do in Kisarazu. However the number one activity is to visit Umihotaru which is the midway point on the bridge which crosses Tokyo Bay from the Chiba side at Kisarazu to Kawasaki which is near Yokohama. Umihotaru is the midway point of the roadway bridge before it turns into a tunnel underneath Tokyo... More 

1 Thank Chris N

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Questions & Answers

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Typical questions asked:
  • Do I have to buy a ticket for my infant?
  • How do I get there using public transportation?
  • Is there a restaurant or café onsite?