UPF (Ultaviolet Protective Factor) clothing, wide-brimmed hats, and UV-blocking sunglasses provide physical barriers that reduce reliance on sunscreen. Modern sun-protective apparel is lightweight, breathable, and rated for sun exposure. This approach also minimizes chemical sunscreen use, easing pressure on sensitive marine habitats — especially in coastal or reef-rich areas.
General habits you can start doing to help coral reefs include applying sunscreen at least 15 minutes before entering water to allow absorption and reduce wash-off, rinsing off excess sunscreen before reef exposure (e.g., rinse in shower, not in ocean) and supporting reef-safe regulations. Some places like Hawaii, Palau, and Mexican marine parks have prohibited oxybenzone/octinoxate–based sunscreens to protect coral ecosystems. Lastly, when you can, reduce other pollutants. Coral reefs are stressed by sewage, plastics, warming, and acids. Personal actions like using reef-safe personal-care products and reducing single-use plastic waste further help maintain reef resilience.