You can swim with jellyfish

Another thing about Palau you should know is Jellyfish Lake. Jellyfish Lake, off the island of Eil Malk, is home to millions of jellyfish that are no longer a threat to humans. Types of jellyfishes are divided into two: golden jellyfish and moon jellyfish. Golden jellyfish is the type of Mastigias Papua, and it is yellowish. The moon jellyfish is jelly-white, and its type is Aurelia aurita. The daily motions are horizontal and vertical. Jellyfishes are made 95% from water, and they have no brain, blood, or heart. They are related to corals, and that’s why there are so many in Palau. When you go to the lake, keep in mind that touching them can be dangerous for your health.

The reason you can swim with jellyfish is that there are no predators in the lagoon so their poison has been weakened over time, making it safe to swim in a sea of jellyfish. Catch a boat and dive straight into the lagoon to experience the strange sensation of these creatures floating all around you. Their striking golden hue creates a beautiful shimmering effect that can be seen from the boat if you don't fancy the swim.