The Crochet Mermaid Tail is pretty straight forward. I added extra information to avoid the slip stitching line that would occur down the side.
The tail is made up of two halves and then sewn together to form the shape. I believe 100’s if not 1000’s of these Mermaid Tails have been made already.
The adult version pattern I had is not available. The PDF went missing and I don’t recall the math it took to change the pattern. I’m sorry.