Dive with Nishida-san at Amakusa — 8 Monthly Sessions, July 2026 – February 2027
intro
This is Yokayoka Diving in Amakusa. We are happy to announce that Kazuki Nishida-san — president of the Japanese Society of Sea Slugs and author of Ecology of Sea Slugs / Nudibranchs Illustrated — will join us as guest guide for eight monthly sea-slug diving sessions from July 2026 through February 2027.
Each session is capped at 10 divers and runs on a weekend, with three-day-weekend dates available for divers traveling from the Kanto region and beyond. The sessions are conducted in Japanese.
About Kazuki Nishida
- Studied sea slugs at Chiba University, then joined Kagoshima City Aquarium
- Established Japan's first permanent sea-slug ecology exhibit and has continued sea-slug research for over 15 years
- Moved to Kagoshima University's Higashi-machi Station in April 2026
- Author of Ecology of Sea Slugs / Nudibranchs Illustrated (in Japanese)
- President of the Japanese Society of Sea Slugs
Schedule
Eight weekend sessions, up to 10 divers each. Up to three boat dives per day. Dates marked "party" include an evening sea-slug social.
| Month | Dates |
|---|---|
| Jul 2026 | 25 (Sat, party), 26 (Sun) |
| Aug 2026 | 29 (Sat, party), 30 (Sun) |
| Sep 2026 | 12 (Sat, party), 13 (Sun) |
| Oct 2026 | 24 (Sat, party), 25 (Sun) |
| Nov 2026 | 21 (Sat, party), 22 (Sun, party), 23 (Mon, holiday) |
| Dec 2026 | 19 (Sat, party), 20 (Sun) |
| Jan 2027 | 9 (Sat, party), 10 (Sun, party), 11 (Mon, holiday) |
| Feb 2027 | 13 (Sat, party), 14 (Sun) |
Single-day or two-dive participation is also welcome.
Pricing
| Item | Price |
|---|---|
| 2 beach dives | JPY 16,000 |
| 3 beach dives | JPY 22,000 |
| Evening sea-slug social (meal + 90 min open bar) | JPY 5,000 |
Rental gear and lodging are separate. Our shop includes a newly-built guest house — please ask.
What's included
- Your photos featured on the Amakusa Sea Slug Survey Project website and Instagram
- ID work on the sea slugs you photograph
- Field talks by Nishida-san on how to find sea slugs and their ecology
- Evening sea-slug social with Nishida-san (on party-marked dates)
Amakusa and sea slugs
Amakusa sits between the Ariake Sea, Yatsushiro Sea, and East China Sea — a diverse environment that supports rich sea-slug fauna year-round. It is also the area where Kikutaro Baba carried out his sea-slug research, and remains an important site in the history of Japanese nudibranch work.
Booking
Booking is first-come, first-served. Please reach out through our website.
- Website: https://www.yokadive.com/
- Phone: +81 90-7291-0661
We look forward to diving with you.
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