regarding compass headings and adjusting for current.
Once you find your marker (remember to look back at your "feature" after you turn down the reef. What looks like a feature from one direction may look decidedly different from another) find something on the bottom on your compass heading. Swim to it. Find something else. Swim to it. No adjustment required, you can spend your swim-time looking for cool stuff in the sand, and you will really have to try hard to miss your exit spot.
The areas around Salt Pier for octopi...
Once you find your marker (remember to look back at your "feature" after you turn down the reef. What looks like a feature from one direction may look decidedly different from another) find something on the bottom on your compass heading. Swim to it. Find something else. Swim to it. No adjustment required, you can spend your swim-time looking for cool stuff in the sand, and you will really have to try hard to miss your exit spot.
The areas around Salt Pier for octopi...