I live in an area abundant in coastal ecosystems. Guana and Tolomato here in North Florida are right down the road from me. The best ways to explore these areas are to get on the intercostal and needle your way through them, hike through the estuaries or fly a drone. I'm in awe of what you can find when I send a drone over. These images were taken on the West side of the intercostal adjacent to Guana / Pine Island.
If you're ever in the North Florida are and love this sort of thing, be sure to check out the GTM Research Reserve.
 

Marshy area during low tide. There is some creature roaming its way around. At first I thought maybe a pig, but pigs usually roam in herds and these paths look like an animal roaming solo.

I just love the texture of the grasses in this image that reveal a color palette that only nature could create.

Here you can see two manatees. I didn't realize they were there when I took the picture or I'd have gone lower and tracked them. It's strange though that one of them looks almost ghostly and the other is very dark.