
Plenty of fun all year!
We organise a variety of events all year round.
Not only do we provide special diving excursions, but we also hold some seasonal activities on land.
Whenever you come to Okinawa, you will have plenty of opportunities to enjoy your time with SEASIR!
SEASIR NAHA 2022
January | |
February | |
March | |
April | 8 ,10, 16, 17, 30th– Drift diving 9th– Excursion to Tonaki 23rd– Sea slug observation diving |
May | 1st– Excursion to Tonaki 2-7, 14, 15, 21, 22, 28, 29th– Drift diving 26th–Sea slug observation diving |
June | 4, 5, 11-14, 16, 19-21th– Drift diving 18th– Excursion to Rukan |
July | 3rd– Early morning dive 2, 3, 16, 17th – Drift diving 4, 12, 20th – Night diving 8th– Excursion to Manza 29th– Excursion to Sesoko & Minna |
August | 1, 9, 17, 29th – Night diving 5th – Excursion to Hedo 11, 13th– Drift diving 12th – Excursion to Manza 19th– Excursion to Sesoko & Minna |
September | 3, 4, 10, 11, 17-19, 23-27, 29th – Drift diving 6, 14th – Night diving 9th – Excursion to Hedo 17th – Excursion to Manza 30th– Excursion to Sesoko & Minna |
October | 8-11, 13, 15-18, 20-25, 27-30th – Drift diving 14th– Excursion to Sesoko & Minna |
November | 1-5, 12, 13, 19, 21-23, 26, 27th – Drift diving 6, 20th– Excursion to Tonaki |
December |
SEASIR AKA 2022
January | 1st– Underwater Shrine diving 11/Jan-9/Feb – Closed |
February | 11/Jan-9/Feb – Closed 19, 20, 26, 27th – Sea slug observation diving |
March | 5, 15th– Coral conservation diving 5, 6, 12, 13, 26, 27th – Sea slug observation diving |
April | 3rd– SEASIR’s Day *¥4,300 discount on stays 15th– Coral conservation diving |
May | Every Friday– Golden night diving 15th– Coral conservation diving 16 to 24th– Coral spawning diving * 26th– BBQ |
June | Every Friday– Golden night diving 10th– Sunset dinner cruise 15th– Coral conservation diving 25th– BBQ |
July | Every Friday– Golden night diving 9th– Sunset dinner cruise 15th– Coral conservation diving 23rd– BBQ |
August | Every Friday– Golden night diving 13th– Sunset dinner cruise 15th– Coral conservation diving 27th– BBQ |
September | Every Friday– Golden night diving 10th– Sunset dinner cruise 15th– Coral conservation diving 24th– BBQ |
October | 15th– Coral conservation diving |
November | 15th– Coral conservation diving |
December | 24th– Christmas party 31st– Countdown party |
*The dates listed are the days when the coral has a high probability of spawning. Since it is a natural phenomenon, there is no guarantee that you can see the coral spawning on those days.
Our Most Popular Events and Excursions

Excursions to Tonaki
Dip in the deep blue!
Tonaki is a famous diving site where you will enjoy the sight of countless lively fish and healthy corals.
Last but not least, you will also find an impressive ocean floor drop-off point there!

Night diving
Night-time diving can be enjoyed all year round from Aka island. Enjoy a swim in total darkness away from the city lights!
Admire an array of nocturnal creatures such as squids, shrimps and sharks, or steal a peek at a fish’s sleepy face.

Coral spawning expeditions
A once in a year occasion!
Go on a magical night-time dive excursion like no other and admire the sea as it gets submerged in what looks like pink champagne bubbles!
Ready for the most enchanting experience of your life?
Two styles of stay with SEASIR
Choose a center based on your preferred style of diving holiday:
Are you in for some nightly fun in the City after your dives?
Or would an incredible starry sky complete a perfect day of swim and calm for an authentic island time?