they are a speciality of toyama. when they get down to 30 meters.hey see a creature that is rarely seen anywhere else but in toyama bay. this fish with a body like a tadpole is a species known as cubed snail fish. this fish live about 200 meters down and only come close to shore in the spring. it's another fish that can only be seen late at night. >> translator: i was so impressed. i'm glad i came here. >> translator: night diving here is such a great experience. and now we can get up to this spot really fast thanks to the new shinkansen. >> translator: we managed to see many of the creatures unique to toyama bay and it seemed like everyone enjoyed the experience. i really hope that many divers start coming here. >> reporter: a new diving destination is opening up in japan. keisuke aishashi, nhk world. >>> it's time for a check of the weather about mai shoji. mai, good morning. people in the russian region of hicasia in southern siberia are dealing with deadly wildfires. hundreds of homes have been destroyed. what is the latest? >> yes, you said it

. >> reporter: toyama bay is one of japan's richest fishing grounds. water gushes up from the ocean floor. it's full of new try ends because it's fed by snow melt from the mountains surrounding the bay. the floor of the bay drops deeply to a depth of 1,200 meters. there is another reason there are so many species of fish here. it's a great place for diving. this man leads underwater tours here. >> translator: i think this is the perfect opportunity to promote the wonders of the amazing ocean life here in toyama. >> reporter: recently he arranged a special event for a group of dive shop owners from the tokyo region. >> translator: do many of you lead night diving tours? >> reporter: he's confident there's great potential in night diving gear because of the wide range of sea creatures. >> translator: this one you could only see late at night. >> reporter: it's late at night when they arrive at the bayshore. they dive into the darkness using underwater lights to see their way. at 20 meters they spot a devil sea fish which greets them with its colorful fin