Mount Volbono

Walkthrough: Mario and Cappy will arrive in Luncheon Kingdom near Mount Volbano, quickly seeing the Broodals up ahead and up to their old ways. The pink lava here isn't poisonous, but it still burns you if touch it, so watch out for that. Across the first gap with be tomato-like monsters that shoot burning sauce at you. To the left of them will be a corn cob you can spin to get across to the other side, stacking the Goombas after you do to obtain a Power Moon from Goombette.

The northern path ahead may look impassible, but by capturing one of the Lava Bubbles coming out of the lava, you can easily get over the pink lava. You can even use the Lava Bubble to reach another Power Moon - found in an alcove to the east of the early seen pink lava - as well as some Purple Coins back near the Odyssey Airship. After heading back to get those, continue down the aforementioned northern path, hop up the platform at the end to once again challenge the Broodals.