Unfortunately, the instructor involved in the course probably told the wanna be instructor to go do this to get the 100 dives required...
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Thalassamania:I agree with you, it's kind of the difference between cavern and cave.
RiverRat:I've thought about taking Cavern. I really don't plan on diving caves but thought Cavern would be fun and good to have for the Cenotes. I thought I might pickup some good skills to use for wrecks etc. from the cavers that teach it.
Is it a waste?
Scuba_Dad:Actually, it's not a waste of time. I took the class last January, and I had a wonderful time. I believe 4 or 5 of the students in my class went on to Intro to Cave, and they didn't have to take Cavern all over again like some people will lead you to believe.
drbill:I almost had to laugh when I started dive travel with my decades old Los Angeles County c-card. Young instructors from other agencies, some whose parents weren't even born when I started diving, were requiring a checkout dive despite a log showing recent dive activity. They weren't even aware that their agencies (more than one) had not even been formed when I started diving.