| Snorkeling Report Grading System Each snorkeling report has a letter grade at the bottom of it (also listed for reference convenience in the Snorkeling Sites Index) to summarize our general opinion of the site and the trip that we took to get there. For us, the most important factor at any snorkeling site is the visibility, followed by the variety and quantity of marine life. “Access” has become increasingly important to us as the years have gone by, and it includes (to a certain extent) our overall impression of the excursion that we took to get to the site. Here is the standard that we use for determining the “grade” for a trip:
| A (+/-) | Site is Fabulous for Snorkeling. | | | Excellent Visibility/Shallow Areas predominate | | | Quantity of Marine Life Excellent | | | Variety of Marine Life Excellent | | | Easy Access |
| B (+/-) | Site is Very Good for Snorkeling | | | Very Good Visibility—Good shallow areas/may be deeper in spots | | | Quantity of Marine Life Very Good | | | Variety of Marine Life Very Good | | | Reasonable Access (may involve some exertion) |
| C (+/-) | Site is Good for Snorkeling | | | Visibility Varies/Site is predominantly deep with only a few shallow areas | | | Quantity of Marine Life Good | | | Variety of Marine Life Good | | | Access may be complicated |
| D | Site is Poor for Snorkeling | | | Visibility Poor—site is deep and therefore it is difficult to see the fish | | | Quantity of Marine Life Poor | | | Variety of Marine Life Poor | | | Access is Difficult/Tricky |
| F | Don’t bother to waste your time at this snorkeling Site—not worth the time, money or the effort! |
 |
