Okinawa spearfishing

Hi Tyler, check out the Spearfishing Beginners section of the forum: https://forums.deeperblue.com/forums/ask-a-question-beginner-spearfishing.61/
The sticky "Dummies Guides" at the top are particularly good places to start.

As for 20', there are plenty of fish to be speared in the first 20' of water - sometimes in the first 4' Freediving fins are worthwhile, plastic blades are the cheapest and probably best option for a beginner (and that is what I still use by choice). An inexpensive simple J-snorkel, such as the Omer Zoom or one of the Cressi or Mares simple-J, is what most spearos seem to use for normal conditions, there are exceptions of course. If you are not used to a simple-J snorkel, give yourself some time to practice and get used to it.

Spearos traditionally go for soft silicone black (or camo), bi-lens, low volume masks but if you are not diving deep, other options may work just as well. A dive float/buoy with flag & ballast is recommended for safety and to hold your fish and an inexpensive float line (e.g. polyester rope which floats, some washing lines fit the bill).