Here are the full details of where the travelling island will appear. It appears at a different location every night. 1 shows where it was when the party first arrived on it. 2 and 3 show where it was the other nights, and 4 shows where it will be that evening and so on as it continues to the right. The red marks indicate the locations closest to the 7 old kingdoms. There’s settlements within a day or so’s hike from pretty much each of these locations.