Terraria have a lot of neat accessories to help them scout their world, but one of the highly coveted ones is the Rocket Boots. These boots bestow the wearer with the ability to ascend into the sky with great speed. It's like having your very own private rocket propulsion system strapped to your feet! Using the rocket boots allows players to get to previously unreachable elevations, enhancing exploration more convenient. With these boots, Terraria becomes a true vertical adventure!

Frostspark Boots Official Terraria Wiki