How can i buy a mermaid tail that i can swim in?

Question

i want to buy a mermaid fin but i cant because i cant find them.

Answer 1

you can buy fins that both feet fit into  for free diving that are shaped like a fish's tail, they are approx 24 inches in length you could then disguise them to look like a mermaids tail try a dive shop or on the net to see where you can purchase them

Answer 2

Dont you mean where?