Returning to the Marble road along the edge of the wall, you’ll spot some colossal steps off to the left of the pathway. Hop up them to reach the edge of a giant fountain, where you’ll need to dive underwater to grab four tokens.
Use the Buddy Bubble technique to walk along the perimeter of the structure to grab the tokens. When you're done getting them, remain underwater in bubble form, and go to the middle of the fountain to break a barrel hiding under the Golden Corplet statues to reveal a jet stream port. Fall into the port, then pop your bubble to be thrust up and squirted above the statues (in the air) where you can collect three more tokens, totaling to seven in all.