Jellyfish (Mastigias papua) of Lenmakana lake. This lake is isolated from the rest of the ocean by ramparts several tens of meters high. It is connected to the ocean by terrestrial channels but it prevents the entry and exit of living organisms. These jellyfish have therefore found refuge in what is for them a haven of peace. They have proliferated to reach millions of people. Misool, Rajat Ampat, Indonesia