The “Everglades” means ever flowing river of grass. It is a massive shallow river of grassy swamp that drains fresh-water Lake Okeechobee in a wide path southward. Its depth varies from the wet season to the dry season, and it creates a fertile habitat for thousands of species of reptile, fish, insects, birds and plants.
December is just the beginning of the dry season, but there is still enough water (with the help of from Hurricane Irma in September) — to provide reflecting pools like this.
