24/09/2024
Great to see Rory’s excellent restriction grading system in action!
My upcoming map of Cenote Puerta Maya will feature a new restriction grading system that I've been working on.
The system uses letters (A-F) to represent the width measurement, and numbers (1-6) to represent the height measurement. These grades will appear in place of the traditional “R,” or “X,” on a map.
The concept is to provide divers with a general idea of what to expect when planning a dive. It is not meant to indicate the precise dimensions of a restriction.
Full article here: https://www.surveydown.com/restriction-grades
Opinions welcome!