We were on this vacation island where we all got to eat those black, peanut sized, jelly candy - a speciality of that island. This candy was lying around everywhere: In our huts, next to our beds, on the edges of the streets, and also floating on the water of the river.

Then a species of humanoid amphibians appeared on that island. They told us that this black jelly candy is actually their eggs.
I asked their leader if they are pissed about us for eating them.
The leader faked a smile and after a short delay he slowly said that it doesn’t bother them.

We were told to gather in one place, behind a sacred black pool, that we had to swim across.
That pool looked like oil and was half full with that "candy". The candy was sticky and got everywhere, eyes, mouth, ears, nose. It was disgusting and hard to swim in.