You can save the ocean creatures she loves in Mermaid Kingdom by vacuuming the trash off of them, freeing them to move around. Sucking up plastic rings, tires and wrappers cleans up the beach and the water and your little environmentalist can visually see the difference that cleaning up the trash makes. Not only does the trash get sucked into the vacuum, but Dora turns into a mermaid and gets to returns the magic crown to Mariana the Mermaid!