Shark Ray Alley

Shark Ray Alley is a shallow (about 2 metres) sandbar within Hol Chan Marine Reserve where nurse sharks and southern stingrays congregate in unusually large numbers. Snorkellers float above them in clear water while the animals move around and beneath them — an accessible and genuinely thrilling encounter for anyone who has not experienced it before.

The nurse sharks are docile and accustomed to snorkellers; they are not aggressive unless provoked, and the standard instruction is to keep your hands to yourself. The rays are similarly relaxed. At peak times the site can be busy with multiple boats moored at once, but the marine life is abundant enough that even crowded visits are memorable. The site is included in most Hol Chan trips; a standalone Shark Ray Alley excursion can also be booked from San Pedro.

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A story
Shark Ray Alley became a congregation point for nurse sharks and stingrays because local fishermen used to clean their catch here, throwing the scraps overboard. The animals learned to associate the boats with food and began gathering whenever boats arrived. Today no fish scraps are thrown, but the behavioural pattern has been passed down through generations of sharks and rays — they still come to the boats, conditioned by decades of association.

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