You will be protected on the beach if you use Hawaiian Tropic sunscreen. Hawaiian Tropic is non-greasy, goes on nice and smooth, and smells amazing. It moisturizes while protecting you from harmful UVA/UVB rays. So feel free to do all your activities because it is sweat-proof and waterproof but don't forget to reapply!
Hawaiian Tropic Sheer Touch Lotion Sunscreen, SPF 15, $8.99
[Photo via @HawaiianTropic]