I have 4 and 5 up now, I think that's a good amount in the hills for now. Again, be careful for snakes, ticks, and other critters. Also when looking for number 5 take the terrain into consideration. These hills are kind of a traffic-free shortcut to downtown Cayucos. Hope you had fun on a nice, easy walk through the hills and you made sure to sheck for ticks!!! 