Again, I marveled at the fact that the park sits only $2 and 45 minutes from our house. It's our western backyard. For the overnight we decided on a popular hike that begins at a spot along the road called “Tres Cruces.” Those who have seen a park map (or just know the place) may understand our trek as “the 4 to the 7;” taking trail 4 south from Tres Cruces until you hit Trail 7 and then heading west on the old Inca trail to its end spot on the road.