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About 17km south of San Miguel, Palancar is a great beach to visit during the week when the crowds thin out. It has a beach club renting snorkel gear (US$10) and there's a restaurant. Nearby, Arrecife Palancar (Palancar Reef) has some excellent diving (it’s known as Palancar Gardens), and fine snorkeling (Palancar Shallows).
A dive shop here runs snorkeling and diving trips to nearby sites.