The Path of travel, starting from the Spawn Point in FoW Follow the map Mabinogi Gold provided, Green Lines indicates the path traveled, and the Green Boxes indicate general spawn points for chests.
The Drops: There is always a gold chest, but it is more common to find a Grape Chest (purple item drop). In FoW you can find Shadow Shields, Bows, Blades, Staves and Chaos Axes.
Those items can bring in above 200k. With that, it is unfair to say that you can get a consistent income per hour, like most chest running income is inconsistent.
In this case, often difficult, your country/ region must have Favor, and you must have the right skills to stay alive, and a party to revive you if you do happen to die.
Skills: Sprint--> Running
Charge--> Running {Elite}
Endure Pain--> Emergency HP gain (take caution when using this skill)
Purge Conditions--> Removing conditions (less important than Remove Hex)
Remove Hex/Holy Veil-> The enemies often cast hexes, which cause skill regen time to increase, or health degeneration.
Healing Breeze-> Quick Recovery, I use when entering a enemy group
Healing Signet--> Lots of HP, but
Rebirth-> Mandatory for Team Runs