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Nishikawana Diving Tour with round-trip transportation from Tokyo and Chiba

There are not many seas where you have a high chance of encountering such large fish as the Japanese giant goatfish, the baldhead bream, the pectoral wrasse, and the sheepshead wrasse. There is no "guarantee" when it comes to encountering these creatures, but you are almost guaranteed to encounter them. In the sea of Nishikawana, which is committed to allowing visitors to enjoy the natural appearance of the creatures, you can observe the ecology of large fish in their natural state up close. The sight of a row of baldhead bream is one of the most representative views of the sea of Nishikawana. At one of the many cleaning stations, you can closely observe the giant Japanese giant goatfish being cleaned comfortably by the cleaner wrasse.

In early summer, schools of grunts begin to create an overwhelming sight in the sea of Nishikawana. In summer, the schools reach their peak and overwhelm divers as they form huge masses. Their numbers easily exceed tens of thousands, forming huge whirlpools that are the biggest sight in Nishikawana in summer. And large migratory fish gather to catch the grunts. You can enjoy the spectacular scene of yellowtail amberjack, Japanese amberjack, amberjack, and long-finned amberjack migrating in all directions while breaking down the grunt masses. The grunt masses that continue from early summer to early autumn are one of the many attractions of the sea of Nishikawana that deserve special mention. Please try to catch grunt masses in the sea of Nishikawana from May to October.

The sea of Nishikawana is heavily influenced by tides and ocean currents every day. Some days are as calm as a lake, but other days the currents are strong. When the influence of the tides becomes evident, the sea can become completely different in just a few minutes, depending on its direction and strength. You can enjoy a variety of diving experiences that you will never get bored of, even if you dive all day. And once the Kuroshio Current flows in, both visibility and water temperature rise at once! So much so that you will forget that you are on the Boso Peninsula. If you understand the mechanisms of tides and ocean currents and use them to your advantage, the "air battle" in the sea of Nishikawana will be very exciting.

Many people may think that this is an ocean where you should dive only after you have improved your skills a little, but in fact, it is a true "Ocean Park" ocean that can be enjoyed by those who have just tried out a trial dive or obtained their C-card, as well as those who haven't dived in a long time. The boat points "Gyosho" and "Tekkai-ne" are calm and gentle points that even beginners can enjoy with peace of mind. For those who are worried about boats, there is also a beach, so you can rest assured. As this Ocean Park does not offer beach guides (only trial and refreshment tours are held), we can introduce you to a shop that offers Nishikawana tours if you are interested.

Nishikawana is a small fishing village with a population of just over 130 people, located less than two hours from Tokyo, with such idyllic scenery that it's hard to believe it's in the Kanto region. With Izu Oshima directly in front of you, and passenger and commercial ships passing by on the ocean, there's something very soothing about watching. Located at the tip of the Boso Peninsula, Nishikawana offers a beautiful sunset overlooking Izu Oshima and Mt. Fuji on a clear day. This is a view we're proud of and we hope you enjoy if you stay the night. The wooden deck Diver's Terrace and the resting areas that can be used by groups are both soothing spaces that will help you forget about busy days. You can also spend a relaxing time after a dive.