Our group of 8 people did a private tour at 6 p.m. with John as our tour guide (he was awesome!). The minimum required for a private tour is 6 people. The tour takes at least 1 1/2 hours but John would have stayed with us longer if we did not have a dinner reservation to get to. Wear comfortable shoes and try to go in the fall or spring when the weather is more pleasant. The tour guide will tell you the history of Oakland cemetery as well as the history of the people buried there. It's really a beautiful park where you will see weddings being conducted.