Five Cozumel Reefs Closed Through September for Conservation Rest

Divers heading to Cozumel during August or September 2026 need to plan around a temporary conservation closure affecting five of the island’s best-known reef sites.

Mexico’s National Commission of Natural Protected Areas, CONANP, is continuing its rotating reef-rest program at Palancar Caves, Palancar Bricks, Colombia Shallow, Colombia Intermediate and Colombia Deep. Aquatic activities are suspended at those five sites for the established August-through-September period. The current stage is intended to reduce visitor pressure and give coral communities a recovery window.

The restriction is site-specific, not a closure of the entire Arrecifes de Cozumel National Park. Divers should work with a CONANP-authorized operator and expect itineraries to be routed to reef sites that remain open. Exact sites can still depend on marine-park direction, port conditions and operator planning, so travelers should confirm the day’s permitted destinations before boarding.

The reef-rest system has operated since 2019 following the spread of coral white syndrome and subsequent bleaching stress. It rotates temporary rest periods among high-use sites rather than removing all recreational access at once.

The closure also reinforces rules that apply throughout the national park. CONANP’s visitor guidance requires authorized boats and guides, prohibits anchoring, and directs visitors to keep at least 1.5 metres from reef structures. Touching reefs, feeding or disturbing wildlife, fishing, and using gloves, knives or rods are prohibited.

For trip planning, the practical takeaway is straightforward: Palancar Caves, Palancar Bricks, Colombia Shallow, Colombia Intermediate and Colombia Deep should not be offered as dive or snorkel destinations through September 30, 2026. Divers arriving in October should still confirm that the rest period has formally ended and check which sites enter the next rotation before assuming access.