No, it’s not a rabid animal. It’s just a creek flowing into the lake, but at its mouth, there is a lot of foam.

The frothy bubbles swirled and flowed in sweeping circles, making patterns on the lake.

This is clean, clean water, but for some reason the foam formed when the water splashed over the rocks at the mouth of the creek, and stayed frothy for quite some distance into the lake.

Foam like icing on a cake,

Lightly drifting on the lake,

Swirling, flowing, curling round,

Who knows where it may be bound?

 

Lacy curtain for a fish,

Saves him landing in a dish,

But when he jumps in the air.

Foamy mustache he will wear.