The video was shot at high tide (2.4 meter) and I read 5-6 meters on the depth gauge at the end of the jetty. About 3 meters around half way down. There we a huge number of small fish schooling at the end of the jetty. From observation visibility is better there on the high tide, so it sounds like if you were at 3 meters at the end of the jetty, this was low water. However there is no way this is going to be a great dive spot, but no worse than Hantu on a bad day.