A "guided snorkel" refers to a snorkeling experience where an instructor or guide leads a group of people, showing them the best spots to snorkel and providing instructions for a safe and enjoyable experience.
Free guided snorkel tours are available to limited numbers from the rear deck so ask a crew member on arrival if you would like to join. (barrierreefaustralia.com)
Other daily features include the optional guided snorkel tour and reef ecology presentation. (wikiaustralia.com)
A number of the island's dive resorts provide guided snorkel tours by boat, and also support self - guided explorations from shore. (caradonna.com)