no, you can't.
Go to the Tiger isle rowboat. The guy there will take you to Deep Jungle Isle.
Use noclip, in the console.
there is no riddle box
You must do the quest MissLime's search for Cap'n hasty
hi2.horseisle.com/ is the website for Horse Isle 2.
go next to the tree click the tree and then press shake.
it is on dumbbell isle the dock man will not give you the sheet but he will tell you the directions
CarpenterSan can be found in his house on Dumbbell Isle.
Yes, you do need one. I am going on it and the helmets coast about 100,500,000 dollars you fiond them on tiger isle.
You can view this on your "MAP" on your toolbar. But it is on Dumbbell Isle.
On Cavern Isle, when you're i the sandy, beach part, if you walk to the left all the way, at the very edge, there will be a tunnel. you should pass one tunnel entrance in order to get there. once there, just follow the tunnel, and you're there!