cuefaye
No, not the Whitsundays
Duckbutt
The sea is the black area (turns a browner colour the more you move to the right). The White is the sand under the sea (and the beach) and the white "tree root" looking area is where a creek comes into the sea - I'll let you guess what the "darker areas" are around the creek is)
You are correct is you assessment that some sea is at the very left of the photo
so yes, it is on a peninsula.
You are correct in your guess of why the sea is significant
