Chest Runs?

So I've heard that some people do solo chest runs. Buy keys and find chests. Unlock and grab item. Rinse and repeat. If you do this, I would like to know where you've had the greatest success and where more chests are clustered closer together compared to other areas. If you don't want the entire community to know, PMs are your best friend.

Thanks.

I've made a good amount of money outside Port Sledge (south of Drok's). The keys cost 600 gold, there are 2-3 chests inthe area. Bring Sprint, Charge, Balanced Stance and some healing skill and you're set. I've gotten some piss poor items, but at the same time I've gotten several nice staff wrappins and insightful staff heads.