- [Narrator] On Eil Malk Island in Palau,

there is a lake like no other.

The saltwater lake was once connected to the ocean;

but as the island changed, it was closed off.

Now in isolation, it is filled with a jellyfish species

found nowhere else: the golden jellyfish.

These cryptic creatures spend their days

migrating across the lake, from one side to the other,

following the path of the sun,

which feeds the fast-growing algae

that this jellyfish species feeds on.

And with no predators to keep them in check,

the jellyfish swarm and fill the lake

like a cloudy dream.

It's safe for humans to swim in,

because though these jellyfish do have stingers,

they are too small to be felt by humans.

Gliding through this place

feels otherworldly.

(electronic ping)