James Hornsby School Leinster Road Basildon SS155NX Training Times Tuesdays 7.30pm - 9.30pm Contact number 07880 355942 Dave Amber Sensei Dave Amber 5th Dan Sensei Dave Amber has studied Goju Ryu for over 20 years under Sensei George Andrews and in 2015 he passed his 5th Dan grading examination in Koh Samui, Thailand. Sensei Dave’s approach to teaching Goju Ryu is that the student should do their best and that their best will improve with practice. His friendly and encouraging approach has helped a great many students over the years. As with all OTGKA instructors, Sensei Dave believes that whilst tradition is at the heart of his karate, it is an effective self defence also.