Where is the famous Jellyfish Lake located?

The Jellyfish Lake is a marine lake located on the Eil Malk island in Palau. It is filled with millions of golden jellyfish, migrating across the lake every day following the arc of the sun. The lake is stratified into two layers, an oxygenated upper layer and a lower anoxic layer, hence scuba diving is forbidden so the two wouldn't mix. But snorkelling is allowed and a very popular activity for tourists in Palau.