|Magical Mermaid Adventure|
|Airdate||March 20, 2015|
|Previous||Dora in Clock Land|
|Next||Puppy Princess Rescue|
Magical Mermaid Adventure is the 13th episode of Dora and Friends in season 1.
- Mariana the Mermaid
- La Sirena Mala
- Octopus Guards
Dora and her friends are helping clean up the beach when they find a bag of gold coins. The gold coins get taken by a sea turtle along with other turtles whose carrying things that were made of gold. Dora and her friends embark on a mission to get back their gold coins. Along the way, Dora reunites with Mariana the Mermaid and together they find a way to get back the gold coins and teaching La Sirena Mala that she should be more fair on a team.
- Mariana the Mermaid makes her Dora and Friends: Into the City! debut in this episode.
- This episode reveals Dora had kept her magical Mermaid Necklace that allows her to transform into a Mermaid.
- Eventually Alana, Emma, Kate, Naiya, and Pablo obtain their own Mermaid Necklace by traveling to Mermaid City.
- Pablo develops a crush on Mariana the Mermaid.