Great way to control access to the fire, and prevent too much heat where you don't want it! Just build the back rim of the fire pit surround so it's higher! Backyard fire pit ~ nice for on the edge of a patio.
Reuse an old tree to make a log pathway in your garden. Good use of "yard" trees and other wood that can't be milled; works much better in climates without termites. Good drainage under the log rounds will make the path last longer.