Reef-safe sunscreen is strongly recommended, especially on snorkeling trips — Puerto Rico's coral reefs are part of what makes these islands worth visiting.
Puerto Rico's coral reefs are a highlight of trips to Icacos, Palomino, Culebra and Vieques.
Look for 'reef-safe' or 'reef-friendly,' usually mineral-based with zinc oxide or titanium dioxide.
A full day on the water means real sun exposure — pack enough regardless of the type.


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It's not enforced, but strongly recommended, especially for snorkeling trips to the reefs around Icacos, Palomino, Culebra and Vieques.
Generally a mineral-based formula (zinc oxide or titanium dioxide) that avoids chemicals like oxybenzone and octinoxate, which can harm coral.
Most pharmacies and convenience stores in Puerto Rico carry reef-safe options — check the label for the terms above.