|#31 – Scuba Scuba Doo|
| Season 2, Episode 5, Part 1|
|Air date:||June 14, 2002|
|Directed by:||John R. Dilworth|
|Written by:||Lory Lazarus|
The Ride of the Valkyries
Conway the Contaminationist
While scuba-diving near a tropical island, Courage and Muriel discover an underwater civilization of tiny coral-dwelling people — the Coralites. Ma and her company Growth Industries believe that this particular type of coral "makes the best wigs" and she sets off on a mission to harvest the coral, even if it means destroying the Coralite civilization.
- This was the last appearance of Ma Bagge because her voice actress died after this episode finished production.
- The name of the episode is a possible reference to "Scooby Doo, Where Are You?", a popular Hanna Barbera cartoon from the 60s/70s. In the show, the titular protagonist Scooby Doo's catchphrase is "Scooby Dooby Doo!".
- In the opening credits, Lory Lazarus is misspelled as "Lori Lazarus".