Calanque Cron is a shallow sheltered bay site in Cavalaire-sur-Mer with small rock blocks, Posidonia meadows, and sandy patches. It works well as a relaxed snorkel or easy-dive choice when westerly winds make exposed sites less comfortable, and the cove's bathing and mooring rules mean access should be planned through a local operator. Expect blennies, gobies, wrasse, octopus, and small flatfish in the shallows.