7:33

Fins : Weight Testing

7:59

Apeks RK4 fin Scuba Diving Review. A comparison review with my older RK3 HD fins & the new RK4's

6:13

Apeks RK3 Fins Review

7:00

Back Kick : Problem Solving

8:51

기초 프로그킥 / Frog kick / 스쿠버전문 교육 1일차 교육 - 헤이다이버스 Heydivers

25:59

Testing Fin Efficiency

1:47

DIVING KICKS DEMO

6:01

FROG KICK, HELICOPTER TURN, SPG CHECK, BACKWARDS KICK