4. Lake Hillier, Australia

Lake Hillier situated right on the edge of Recherché Archipelago’s largest island in Australia may remind you of a bubble-gum or a strawberry milk shake, ’cause the color of this lake is PINK. It’s likely that there’s a vast underwater strawberry meadow, because scientists are not really sure why the water is pink. The meadow of strawberries or not, you’re probably just curious whether or not you can swim in lake Hiller. Well, here’s the good news, it’s just a really salty lake. It is perfectly safe for swimming and it doesn’t seem to have any adverse effects on people or local wildlife.