We teach at Carnegie State Vehicular Recreation Area, located between Livermore and Tracy on Corral Hollow Road. Note that this same road is called Tesla Road from the Livermore side.
The best directions are to enter "Carnegie SVRA" in the search box of your map app.
From Livermore continue EAST on 580. Stay east on 580/south Interstate 5 at the 205 split. Exit at Corral Hollow Road (exit # 72), turn RIGHT at the stop sign. Approx 6 miles to the park entrance. (Park is on your left. You will see tracks and trails for almost one mile before the actual entrance.)