Glow sticks in the pool, great for night swimming! Not sure this would be the best idea for a big in ground pool (would probably take a couple hundred sticks), but would definitely be cool in a kid pool or an above ground pool!
DIY Beach Spray: In an empty spray bottle add: 1 c. water, 1 Tbp. Sea Salt, 1 tsp. Coconut Oil, 1 tsp. hair gel: shake well to mix and apply generously to almost-dry hair. Flip your head over, scrunch your hair and allow it to air-dry. [5 Gorgeous Beach Hairstyles]