Hovering Speed
Speed Type
Using 
you can Move around surfaces without direct contact, usually up to your creature size (or base size).
This means you can hover up walls, but must be within Reach of the surface to hover.
Simply put, Hovering Speed is not Flying Speed, as the creature must be within Reach of a tangible surface, but can still Move horizontally and vertically up those surfaces within Reach.
d100
Mod
ADV/DIS