Souvenir Shopping
Cap Kingdom contains 50 Regional Coins in the form of purple hats. All 50 Regional Coins can be found any time after your initial visit by returning aboard the Odyssey once you’ve reached Sand Kingdom.
Local Currency
There are four Regional Coins inside the Frog Pond area, high on a wall. Follow the instructions for Power Moon #10 to enter this area.
Enter Top-Hat Tower and capture a frog. Hop back toward the entrance and note the Regional Coins high above. Leap from the blocks on the right to activate the invisible blocks above them. Leap from there up to the four purple coins. There are five more Regional Coins in this area.
There are also three Regional Coins inside the push-block level at Top-Hat Tower (see Power Moon #08). Round the first corner to the next Spark Pylon and pause at the node atop the purple coins. Drop onto the blue block, grab the coins, then recapture the Spark Pylon.
The final three Regional Coins are inside the poison peril area of Top-Hat Tower. Follow the instructions for Power Moon #07 to find them.