Hi, DSS and DSD have been doing it for 4 years.
There is familiarisation, confidence and skills.
There are "tests" of swimming, body boarding, beach sprints, dolphin-diving, spotting a rip, wave watch, safety, life saving skills, and games.
DSS hated it (and anything to do with water incl baths and showers) until last year and now loves it.
DSD always loved it.
ETA: nah not cliquey at all.