OIKA Tactical Defence Studio

OIKA Tactical Defence Studio

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MENSORI !! Welcome to the first and longest running Okinawan Isshinryu Karate & Kobudo Association.

24/04/2026

Shihan Robert Slywa is the founder of Tactical Defence Studios and OIKA-Okinawan Isshinryu Karate Association. He served in the Australian Navy from January 1964 until the end of the Vietnam War and was on active duty on the HMAS Melbourne and HMAS Sydney between the 31st of May 1965 to the 11th of June 1966. During his naval years he studied jiu jitsu and Kenpo karate. He later studied in Okinawa Isshinryu with Master Angi Ueza and Ryukonkai with Master Kotaro Iha. Shihan Slywa passed away on the 7th of May 2019 leaving his Isshinryu, Ryukyu Kobudo and Ryukonkai legacy to his students. May he always Rest In Peace. Lest we forget. 🌹

12/02/2026

Happy 87th birthday to the founder of Ryukonkai, Grandmaster Kotaro Iha!

“You should not love to fight, but not, even for a moment, forget to prepare for fighting.”
- Miyamoto Musashi, Go rin no Sho , The Book of Five Rings, Iha’s creed.
*photo by Travel 67: Chris Willson Photography

26/01/2026

09/01/2026

Due to the high temperatures today, all classes are cancelled for student safety. Stay cool and hydrated. See you on the mats next week!

31/12/2025

24/12/2025

Wishing all our students, their families and followers a Merry Christmas tomorrow! 🎄

04/12/2025

Happy birthday to Mitsutada Sensei from Ryukonkai honbu in Okinawa!

30/11/2025

Congratulations to Therese 2nd kyu Ryukonkai! Brilliant effort as always!

24/11/2025

We recently held gradings in Isshinryu Karate and Ryu Kyu Kobudo. Congratulations to the following students!

🥋ISSHINRYU KARATE:
✔️Ameliyah 5th Kyu
✔️Benjamin 1st Kyu
✔️Kyle 1st Kyu
✔️Tim 1st Kyu

✔️Tobias Shodan
✔️Jake Nidan Ho
✔️Mahi Nidan ho
✔️Anastasia Nidan
✔️Pete Sandan
✔️Andrew Yondan

🥋RYU KYU KOBUDO
✔️Alessandro Nidan
✔️Anastasia Nidan
✔️Sean Sandan
✔️Peter Sandan
✔️Andrew Yondan

Note no pics of children due to privacy.

Photos from OIKA Tactical Defence Studio's post 28/10/2025

Congratulations to Peter 5th kyu Ryukonkai!

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Location

Telephone

Address


Cnr Celebration Drive And Dundee Street
Sydney, NSW
2168

Opening Hours

Monday 5:30pm - 7pm
Tuesday 6:30pm - 8:30pm
Thursday 6:30pm - 8:30pm
Saturday 11:30am - 5pm