Reef-safe sun protection shields your skin without harming the ocean you love. Common sunscreen chemicals like oxybenzone and octinoxate damage coral and marine life, so choose mineral formulas based on zinc oxide instead. Better still, cover up: rash guards, hats and dive skins block UV without any chemicals at all. Reapply mineral sunscreen between dives and after long surface swims. Learn which products genuinely protect both your skin and the reef, plus simple habits that keep every dive site as vibrant as you found it.