Swim, Boots, swim!

Dora wants to spend a day at the ocean, but she is surprised to learn that Boots doesn't know how to swim. Boots gets his first swimming lesson from Mariana the Mermaid. Dora invites Boots to go swimming in the ocean with her, but she learns that Boots cannot swim, so Dora's friend, Mariana the Mermaid, volunteers to give Boots a swimming lesson.