They probably made it, thinking that the 'trials' they put in place are a fun challenge, and didn't realise how impossible they are for normal people. It's very clear that the Toads who run the spa are out-of-touch with reality.how is anyone besides some sort of chosen one supposed to get up there, much less be able (and willing) to fork over that much cash for a soak in some hot springs? How does anything about that place make sense? To get there you either have to fly or: 1:Go around the kingdom to get the powers of the vellumentals, 2: Go around the sea and find statues that tell you where to go, 3: Find a special key and go beneath the oceans surface (something Mario needed to use a museum piece for), 4: pass trials to get orbs that act as keys, 5: take those orbs to a random tower, 6: solve puzzles to climb said tower 7: use the power of the vellumentals to hit four random switches, and 8: pay a large fee. Don't think too hard about the consequences. Papercraft world, each area probably has its own sky, like a diorama.

However, if the sun is missing, why isn't the entire world locked in nighttime until the sun is restored to its place? In the third chapter, it's revealed that Hole Punch stole the sun from the sky.For the trials, I assume he just wasn't aware of its relevance, and even if he had been, he propably would not have cared. It's implied that King Olly can mess with the paper world as he pleases (note how he created big bottomless holes in the entire world), so I assume he just folded the door or the glass ceiling to invade Diamond Island.Why did King Olly and his forces mess with the Ice Vellumental Temple but leave the rest of Diamond Island completely untouched? For that matter, how did they even get into Diamond Island without the key?.

King olly ice vellumental