Wangenheim and Hourglass Fields are easily accessible from Mira Mesa Blvd and the 15 freeway. 

General Driving Directions (from Mira Mesa Blvd area) to Wangenheim Joint Use Sports Fields
Head north on Black Mountain Rd from Mira Mesa Blvd (major east-west street through Mira Mesa).
Continue straight on Black Mountain Rd past Hillery Drive/ Walker Elementary
As you pass the Walker Playground, you will come up to Wangenheim Fields.
Entrances are along Black Mountain Road as depicted in gold. 

Parking Tips
-Street parking along the side of the park on Black Mountain Road
-Miramar College parking: If you prefer a bigger lot before walking, you can park at Miramar College (free on weekends) which is a left on Miramar College Driveway (opposite Wangenheim Fields).
-You can often find legal street parking on Hillery Dr and nearby residential streets north of Black Mountain Rd. (Check signs carefully.)
-Avoid blocking driveways or fire hydrants.
YOU CANNOT ACCESS THE FIELDS FROM WANGENHEIM MIDDLE SCHOOL.

General Driving Directions (from Mira Mesa Blvd area) to Hourglass Fields
Continue on from the Wangenheim directions to Gold Coast Drive. Entrances are depicted in green.
Make a U turn onto Black Mountain Road or a left onto Gold Coast Drive.
If on Black Mountain Road, make the second right into the parking lot, then continue to the back (2nd right)
If on Gold Coast Drive, make the second left, then a quick left, and another left past the containers into the parking lot.