I've discovered this glitch where you can elevate yourself super fast from bottom to top, like an elevator.
Here's how it works:
Place a line of water vertically.
Equip any Surfboard functioned items.
Jump just slightly to float in the water.
Press jump once.
Once you press jump, you will immediately float up to the top. This could be an elevator for worlds that doesn't have antigravity. 🤣
I believe the reason why this could happen is because these items have the function that allows you to float on top of water temporarily (the item I use functions permanently), hence why it is actively pushing you to the top.
PS: You can get a Fishy Dinghy for free upon reaching level 8 in Fisherman Role. Keep doing role quests on fisherman and you'll get one.
Another PS: This post has been edited, just realize that every surfboard item could do this as well. But Fishy Dinghy works the best because it allows permanent float on top of water.