Spiritfarer: Farewell Edition

Through your journey, you will eventually build the mailbox for your ship. And a little while after that you should receive a brochure for Furogawa Tours. Now, head to Gurenu Fields and once on the Island you should be greeted by the tour guide. Take the tour and at the end make sure you choose to tip.

After building the mailbox, you will eventually receive a brochure for Furogowa. Travel to the newly marked island and find the tour guide at the edge of town. Accept the tour, following him to various locations, and give him a tip at the end.