This is on Navajo land and an entrance fee and permit is required. Lower Antelope is not as restrictive as Upper Antelope, so you can get an unguided "photographer's pass" to take your time (2 hr. limit) when shooting. In contrast to Upper Antelope (where you get the mid-day light beams), I find Lower Antelope better mid-morning or mid-afternoon, when the sun isn't directly over the slot. A tripod is mandatory since multi-second exposures are the norm.