Skip to navigation Skip to main content

About Chiba

Diving in Chiba Prefecture offers a delightful blend of convenience, accessibility, and diverse marine ecosystems along its picturesque coastline. Situated just a stone's throw away from Tokyo, Chiba has become a popular destination for urban divers seeking underwater adventures without straying too far from the city.

The prefecture's coastal areas, particularly along the tip of the Chiba Peninsula and the Pacific side, boast a variety of dive sites characterized by their rich marine biodiversity and unique underwater terrain. Here, the convergence of warm Black currents and cold currents from the south creates a dynamic environment that supports a wide range of marine life, from tropical species to those adapted to colder waters.

One of the advantages of diving in Chiba is its easy accessibility from Tokyo and Yokohama, thanks to the Tokyo Bay Aqua Tunnel that runs below the Tokyo Bay. This convenient access makes Chiba an ideal weekend getaway for urban divers looking to escape the hustle and bustle of city life and immerse themselves in the tranquility of the underwater world.

While Chiba's coastline is renowned for its surf beaches and laid-back atmosphere in the summer months, it also offers ample opportunities for diving year-round. Dive shops and operators in the area cater to divers of all levels, providing equipment rental, guided excursions, and certification courses to ensure a safe and enjoyable diving experience.

Whether you're a beginner eager to explore your first dive site or an experienced diver seeking new underwater adventures, Chiba's dive spots offer something for everyone. So pack your gear, dive beneath the waves, and discover the hidden treasures that lie beneath the surface of Chiba Prefecture's pristine coastal waters.

Local Areas

Chiba Area Map

Areas in Chiba

Chiba Ito

Japanese Hound Shark heaven
Ito Tateyama Chiba "Shark Scramble" is one of the hottest topics for the Japan region diving scene for some time.
It is the work of Mr. Kan Shiota, the Diving Shop owner of "Bommie" (Which is the only resort Diving shop for this Diving spot) who received a request for the local fisherman to solve the shark issue which the fisherman was facing at the time.

The local fisherman didn't want the sharks to be caught in the nets as they were damaging the fishes they want to send to the market. Mr. Shiota says that the sharks that was caught was also being damaged as they were thrown back to the ocean. To solve this issue, Mr. Shiota set out to lure the sharks away from the fishing nets.
With the shark population stable, and presumably happy, we are very lucky to have this wonderful diving spot just a few hours away from Tokyo.

To dive at Ito, you can either use the only resort diving shop "Bommie" or searched for City diving shops near you and join their excursion trip out to Ito.
*Please note that there is another diving area called ITO in Shizuoka prefecture. (This ITO is in Chiba prefecture)

 

Diving Point

Eastern buoy site (Shark City)
・Maximum depth= 21m
・Marine life found at Eastern buoy: Large schools of stingray,
hundreds of banded houndsharks, large longtooth groupers measuring over 1m long,
and Asian sheepshead wrasses.

Western buoy site
・Maximum depth= 24m
・Marine life found at Western buoy: Various types of soft coral,
sea anemones, and other species of coelenterate.

 

What you can see

All year round:
-Variety of nudibranch
-Variety of Shrinps and Crabs
-Variety of Macro marine life
-Japanese Red stingray(Hemitrygon akajei)
-Asian sheepshead wrasse(Semicossyphus reticulatus)
-Longtooth grouper (Epinephelus bruneus)
-Japanese Banded houndshark(Triakis scyllium)

If your lucky:
-Japanese Butterfly Ray(Gymnura japonica)
-Japanese bullhead shark(Heterodontus japonicus)

Honshu’s Must-Do Shark Dives

Article by the Japan National Tourism Organization published on 2019/3 When one thinks of Japan, world-class shark diving may not...

Shops in the area

ITO DIVING SERVICE BOMMIE 伊戸ダイビングサービスBOMMIEボミー

  • Tateyama, Chiba
  • Japanese, English
  • Cash
  • Resort
  • PADI
  • Shop link

Adrenaline Divers アドレナリンダイバーズ

  • Ota-ward, Tokyo
  • Japanese
  • Cash
  • City
  • PADI
  • Shop link

DiveZone Tokyo ダイブゾーン東京

  • Dive from Tokyo city, Tokyo
  • English
  • CashCredit Card
  • City
  • PADI, Others
  • Shop link

Tokyo Divers トウキョウ ダイバーズ

  • Shizuoka Izu, Tokyo
  • English, Japanese
  • CashCredit Card
  • City
  • PADI, Others
  • Shop link

Tokyo Frogs 東京フロッグズ

  • Dive from Tokyo city, Tokyo
  • English, Japanese
  • CashCredit Card
  • City
  • NAUI
  • Shop link

World Tour Planners CO.,LTD 株式会社ワールドツアープランナーズ

  • Minato-ward, Tokyo
  • Japanese, English
  • CashCredit Card
  • City
  • PADI
  • Shop link

Pinnacle Diving Company ピナクルダイビングカンパニー

  • Kanagawa, Kanagawa
  • English
  • CashCredit Card
  • City
  • NAUI
  • Shop link

Katsuura

Pristine diving point in the Tokyo region

With it's saw tooth shaped coastline, Katsuura has long time flourished as a major fishing port of the region. The morning market has been around for more than 400years, and is now a popular tourist spot with many visitors through out the year.

Katsuura is located on the east coast of southern Chiba Prefecture in the approximate center of the Boso Peninsula. It is bordered by the Pacific Ocean to the east.Only 75km from the center of Tokyo, it's only a 2hour drive, a day trip away.

Still a new diving area, you can enjoy the pristine underwater environment.

What you can see

All year round:
-Variety of nudibranch
-Variety of Shrinps and Crabs
-Variety of Seahorses
-Dragon moray(Muraena pardalis)
-School of Chicken grunt (Parapristipoma trilineatum)

If your lucky:
-Tiger snake eel(Myrichthys maculosus)
-Japanese bullhead shark(Heterodontus japonicus)

 

Shops in the area

World Tour Planners CO.,LTD 株式会社ワールドツアープランナーズ

  • Minato-ward, Tokyo
  • Japanese, English
  • CashCredit Card
  • City
  • PADI
  • Shop link

Nishikawana

Warm/cold ocean currents colliding to nurture abundant marine life

Nishikawana is located at the far southern tip of the Boso Peninsula, facing the Pacific Ocean to the east and south, and the entrance to Tokyo Bay on the west.

Only a 1.5hours drive from the center of Tokyo, it's visibility makes this diving spot a popular destination for the Tokyo area divers.

The lining up of  Beard grunt(Hapalogenys nigripinnis) is very famous at this diving point.You can slowly craw up to them to about 10-20cm to take a perfect underwater photo of this creature.

What you can see

All year round:
-Variety of nudibranch
-Variety of Shrinps and Crabs
-Variety of Seahorses
-Scool of  Beard grunt(Hapalogenys nigripinnis)
-Longtooth grouper (Epinephelus bruneus)

During the Summer season:
If your lucky:
-School of Japanese eagle ray (Myliobatis tobijei)

Shops in the area

Adrenaline Divers アドレナリンダイバーズ

  • Ota-ward, Tokyo
  • Japanese
  • Cash
  • City
  • PADI
  • Shop link

World Tour Planners CO.,LTD 株式会社ワールドツアープランナーズ

  • Minato-ward, Tokyo
  • Japanese, English
  • CashCredit Card
  • City
  • PADI
  • Shop link

Kamogawa

A dynamic ocean where the warm current and the cold current collide. Relatively close to Tokyo and with the Kamogawa SeaWorld,  it is a popular day trip destination for many Japanese families.
The underwater environment is exciting. During the winter time, there is a hole where dozens of  whitetip reef shark(Triaenodon obesus) hides during the day. During the other seasons, you see cold water fish and warm water tropical fishes coexisting in the same habitat.

Handa

A day trip destination from Tokyo, Handa is popular among the novice divers. With shallow water and minimum current, it offers divers a relaxing dive. The site is also popular because of the various corals you can see. From hard corals to soft corals, it is often referred as a "beautiful" underwater gardens.

Hazama Underwater Park

A diving site to consider.
If your Ok with Zoos and aquariums, Hazama is a place to check. Due to the local fishing method(Stationary nets), there are many large marine animals caught in the nets through out the year. The Underwater Park has a large area of net enclosure to house these large animals when it is caught by the local fisherman. If your lucky, you can see Whale sharks, Mola Mola here. There are over 10 diving spots in the area and the underwater shrine and it's idol, Asian sheepshead wrasse(Semicossyphus reticulatus) is also a site to see.

Diving Site(Hazama Underwater Park)

Shops in the area

World Tour Planners CO.,LTD 株式会社ワールドツアープランナーズ

  • Minato-ward, Tokyo
  • Japanese, English
  • CashCredit Card
  • City
  • PADI
  • Shop link

Tokyo Divers トウキョウ ダイバーズ

  • Shizuoka Izu, Tokyo
  • English, Japanese
  • CashCredit Card
  • City
  • PADI, Others
  • Shop link

Namegawa

Located on the Pacific side of the Chiba Peninsula, Namegawa offers both dynamic reef diving and Macro diving to the local divers. The "Maguro-ne" is a large reef (800m x 2km), with constant fast current, the marine animals around this reef are constantly large in numbers. There are diving points that are only 3-5m deep  with many nudibranch and small marine animals.

Okinoshima

It is an Island located at the south side of Tateyama bay, this location was graded "AA"for it's water grade survey 10yeats ago. It is not actually an Island now, as it is connected by a sand bar. This diving site are mainly, shallow rocky bottom to sandy bottom sea beds. 

Average Water Temperatures