Amarea has long turquoise hair and blue eyes. She wears a pink cap decorated with pearls. Once transformed, she has a simple, pink and violet sequined bra, decorated with ruffles as well as long pink sleeves with ruffles. her tail is long, pink, spangled and adorned with ruffles. She wears a yellow starfish in her hair, one at the waist and also in earrings. Amarea also has a blue and pink bracelet on her arm and small yellow wings.
Amarea is a very gentle and sweet mermaid. She is very caring and protective to her friends.
Amarea is captured by Valtor's evil spell along with Coralia and Talassia. Valtor places his mark on them; stealing their magic and changing them into sea monsters that attacked anything that crossed their paths. After Valtor's defeat, Amarea's magic returned, she became a mermaid again and she returns home to the Underwater Kingdom.
- In the Nickelodeon dub, she was called Corelia (not to be confused with the real Coralia).
- Amarea's name is of Portuguese origin and it means "love" or "beloved".