Elena of Avalor (2016)

S02E15 Song of the Sirenas

Title: Melody of the Sirenas Plot: During a trip to see her cousin in coastal Avalor, Elena stumbles upon a fascinating group of mermaid-like beings known as sirenas, uncovering their tumultuous past with humanity. Eager to bridge the gap, Elena forms a friendship with the sirenas and seeks their assistance in her battle against the malevolent sorceress Shuriki.