Any parts of your body covered by a swimsuit
When you are at the beach, one of the most common mistakes is to apply sunscreen the moment you arrive. By the time you got there, your skin was already exposed to harmful sunlight. The sunscreen needs an additional 15 minutes before it gets fully absorbed in the skin.
Plus, you’ll only apply protection to the parts of your body that are not covered by your swimsuit. To avoid that from happening, apply sunscreen when you’re fully naked.
This way, you’ll make sure all the parts of your body are fully protected, no matter if you’re wearing any clothing or not.