Cave diving in Japan.

Please register or login

Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

Benefits of registering include

  • Ability to post and comment on topics and discussions.
  • A Free photo gallery to share your dive photos with the world.
  • You can make this box go away

Joining is quick and easy. Log in or Register now!

Akio - do you know anything about the caves in Yamaguchi - Omishima? I have heard that even though they are a long way from the coast there are probably underground connections all the way to the sea. It's mostly unexplored as far as I know. If this was true it would probably be a bigger cave system than Wakulla/Woodville Karst Plains.
 
Not as familiar with the northern caves but I thought the U/W cave in Okinawa (Onna area) was the largest in Japan? There is also an awesome cave in Kume-jima. Both of these caves are still being mapped and explored. Both are sea caves with entrances from the ocean. Numereous small caves have been found around the the larger one in Onna and many smaller ones have also been found up the coast of Okinawa. Exploration is quietly going on in many places in Japan.

What distance has Inamazumi been mapped to? Has it been full explored yet?
 
Inazumi is deeply beautiful cave.
Inazumi is far about 1260km from Kanto.
An owner of cave is very kind.
It is very fun to stay at Inazumi. :redcap:

I know caves in Kanto.
But,
I have to be looking for how to dive in cave of Kanto.
 
Kim -
I know cave in Akiyoshi, but I can't believe Yamaguchi - Omishima.
Akiyoshi has 429 caves. :icecream1
But Omishima doesn't have a cave except for the sea cave very much.
I think that is a wonderful legend.
It's like the cave in Enoshima(Kamakura) - Mt.Fuji.

It is probably Ryusen-do(Iwate) that it can think with a cave like Wakulla.
Many bigger caves than Wakulla are in Yucatan(Mexico).
:vampire:
 
japan-diver:
Not as familiar with the northern caves but I thought the U/W cave in Okinawa (Onna area) was the largest in Japan? There is also an awesome cave in Kume-jima. Both of these caves are still being mapped and explored. Both are sea caves with entrances from the ocean. Numereous small caves have been found around the the larger one in Onna and many smaller ones have also been found up the coast of Okinawa. Exploration is quietly going on in many places in Japan.

What distance has Inamazumi been mapped to? Has it been full explored yet?
Hirobe-gama is the largest sea-cave in Japan.
That is not the largest U/W cave in Japan.
Total extension is 640m+.
I have known who cave discoverer for about ten years.
He discovered cave five years ago, and they had been surveyed cave for two years.

Hidenchi-gama is the second sea-cave in Japan.
Total extension is 410m+. :theyareon

The divers who explored Hidenchi-gama and Hirobe-gama were diving at Inazumi.
They are a little expecting the size of Inazumi.
Therefore, they say that it is the biggest sea cave in Japan.

No yet! :bonk:
Inazumi is not mapped, distance was measured only.
It is too big to survey Inazumi with a few divers.
I just dive over 1000m.
 
A rope is drawn from air cave about 700m.
It has 400m to the first -40m.
It has more 150m to the second -40m.
It has more 150m to the third over -50m.
I was scared at the point where fell like a cliff. :crying2:
The point led more deep to the bottom.
I don't know after that where becomes too deep.

I found new passageway from main road. :burnout:
I have gone just 100m because there is a place to collapse halfway.

Inazumi is the artificial cave where it was dug with sightseeing.
An air cave has 200m.
Actual Inazumi is a U/W cave.
Therefore, an U/W cave is under the air cave as well.
The cave is different face from the back big cave.
A cave is small, complicated and beautiful.
(All the photographs which I uploaded are these points.)
This is the map which did handwriting.
I publish this map in web for the first time. :admin:
Because it is not survey but just sketch.
 
This cave is into "Goshintai".
Goshintai is mean an object of worship housed in a Shinto.
The cave diving which dives in the waterfall.
The waterfalls name Daihi. :bic:
The meaning of Daihi is mercy of Buddha who saves present pain.
 
Nice report of the cave. Is the water thin salt water or does it have a halocline (water layers)? The bones appear to be human. Does that mean that it was inhabited by early humans when the cave was above water in eons past? Very interesting to see the pot there.
 
https://www.shearwater.com/products/peregrine/

Back
Top Bottom