I've never run into another climbing party there in 6 trips to this falls over 5 years.
At the South end of Canandaigua Lake @ the Hi Tor Wildlife area. Parking area south of Parish Hill Rd on 245. Approach time to the top 15-20 minutes. 30 minutes if you walk up the creek to the base (be on the lookout for the falls on the right about 1/2 mile up the creek - it's easy to walk past)