About us
SEASIR Ltd. operates Marine Club BERRY and started as a diving shop on Aka island in 1983.
From there, SEASIR has grown into the largest Okinawan marine leisure company existing to this day.
In Okinawa, we operate 4 scuba diving and marine activity shops, a marine equipment store, an overhaul center, a hostel, a pension, and a travel agency.
In 2019, we also opened a diving shop in Cebu in the Philippines.
Our company vision is to be a gateway for anybody to discover the wonders of Nature
and to inspire them with the drive to protect this exceptional heritage that is the sea.
Company information
| Company name | SEASIR Ltd |
| CEO | Hideshi INAI |
| Capital | JPY 48,000,000 |
| Our business | ・Marine leisure services ・Diving instructor education ・Diving equipment wholesales & retails ・Diving equipment development ・Food service（Aka island） ・Accommodation（Aka island, Naha） ・Travel agency |
Head office
Adress 2-2-2, Minato-machi, Naha. Okinawa 900-0001
Our history
- 1983/07
Our first diving shop “SEASIR AKA” opened on Aka island.
- 1997/02
SEASIR NAHA opened in Naha city.
- 1998/03
SEASIR MIHAMA opened in Chatan. The shop was equipped with its own diving pool and equipment shop.
- 1999/05
Opening of our subsidiary company “Marine Club BERRY” at Kanucha.
- 2000/05
Opening of the Marine Club BERRY KISE.
- 2002/03
Launch of “LOVE”, our largest diving cruiser.
- 2002/09
SEASIR became a joint-stock company.
- 2005/04
Opening of our hotel at SEASIR AKA.
- 2008/08
Launch of our Premium Brand, Dive＆CRUISE “La mer riche”.
- 2011/12
SEASIR MIHAMA closed.
The shop reopened as the “Uminchu shoten” equipment store in Naha. - 2012/05
Opening of the Marine Club BERRY NAHA.
- 2014/07
Our “LINE” diving cruiser sets sails for the first time.
Launch of half-day tours. - 2015/01
Start of “SEASIR travel“, our online travel agent for foreign travelers.
- 2015/07
Opening of “MyPlace“, our guesthouse located in Naha.
- 2016/03
SEASIR ranked in the top 100 companies promoting diversity.
- 2016/08
Inauguration of “LAGOON”, our third diving cruiser.
- 2017/02
The head office and our Uminchu store relocated in front of SEASIR NAHA.
- 2017/04
Opening of SEASIR CEBU in the Philippines.
- 2020/04
Start of our parasailing tours in Naha.