If your child would love to be a mermaid (or merman) we found a terrific option in FinFun. Here's why we think kids from toddlers to teens will love them.
Prevent child drowning: No blue suits or mermaid tails - Futurity
Mermaidubai- Mermaid tail for swimming
Mermaid tails for swimming that let kids make the most of summer
Swimmable Mermaid Tails for Living Your Best Mermaid Life
Girl's Mermaid Swimsuit Ruffle Decor Bikini Set Mermaid Tail - Temu
30 Best Mermaid Tails for Kids and Adults – AquaMermaid
Cheap 3Pcs/Set Girls Mermaid Tail Swimsuit Children the Little Mermaid Costume Cosplay Beach Clothes Bathing Sui Cute BeachWear
My Daughter the Mermaid
Kids Swimming Mermaid Tail Costume - 8 colour options! - Wowcher