Coins are used to purchase buildings, saplings and many other useful items. Here’s how you can earn them:
  1. Complete orders on the board.
  2. Complete missions.
  3. Increase your level.
  4. Collect seashells, sea stars, and crabs.
  5. Find chests and piles of treasure hidden throughout the game world.
  6. Explore the crevice on your Home Island. (It can be unlocked by completing missions on your Home Island.)
  7. Sift through sand piles.
  8. Unlock new achievements.
  9. Win them in the butterfly-catching mini-game.