Aikido Cork Open Centre

No appointment necessary. After living in the United States for 35 years, Decker Sensei returned to Europe in 2009.

Aikido Cork Open Centre

Technical Director:
Philippe Gouttard Shihan, 7th Dan Aikikai
Chief Instructor and Dojo-cho:
Detlef Decker Sensei, 6th Dan Aikikai

Visitors always welcome. The Cork Open Centre was founded by Decker Sensei, a student of internal martial arts for over 40 years, as a Centre for the study and practice of Aikido and T'ai Chi Ch'uan in Cork City. He received all of his Aikido

13/06/2026

Three months out and Dan's Cork seminar is full. There might be a few places opening up down the road. If you are interested in attending we will be starting a waiting list. Anyone on the waiting list must hold a 1st kyu rank and up.

05/06/2026

Beginners are always welcome. 🙏😊

Aikido Cork Open Centre Aikido Cork Open Centre

Technical Director:
Philippe Gouttard Shihan, 7th Dan Aikikai
Chief Instructor and Dojo-cho:
Detlef Decker Sensei, 6th Dan Aikikai

Visitors always welcome. No appointment necessary.

02/06/2026

New Tai Chi Summer Course starting June 17.

05/05/2026

A seminar you don’t want to miss! After months of planning, registration is now open for our upcoming seminar with Yoko Okamoto Shihan. https://www.nyaikikai.com/okamotoseminar

Details are as follows:

- Seminar location (Dwight School Athletic Center, 2116 1st Ave + 109th St)
- Schedule details (Friday night, all day Saturday with lunch and happy hour, Sunday morning—times on our website)
- Seminar pricing (early bird pricing available till June 15, includes mat fees at the NY Aikikai for visitors on October 1, 2 and 5)
- Scholarship application (we have five available, application deadline June 15)

Our official flier will be ready soon for you to share at your home dojo and online. In the meantime, please register now to take advantage of our early bird special and to join us in welcoming Okamoto Shihan back to New York City!

All are welcome! https://www.nyaikikai.com/okamotoseminar