This easy route begins about 20 feet up from Sunup and follows a wide crack up and left to the apex of the lower tier. Crack of Don shares anchors with Sunup, and parallels the route farther up. Once at the anchors, it is possible to scramble up a second lackluster _pitch_ to the top of the Lower Sun Tower. To descend, either rappel with a single rope from the anchors, or continue to the top and walk off left between the two tiers and scramble to the ground. Worth doing if you're already in the area, but not much else to recommend it.
Medium cams, stoppers. Hexes also work well.
BETA PHOTO: Lower Sun Tower climbs.