1. US-101 N.
2. Merge onto CA-37 E toward VALLEJO/NAPA.
3. Turn SLIGHT LEFT onto SONOMA BLVD/CA-29 N. Continue to follow CA-29 N.
4. Take the ramp toward DOWNTOWN NAPA/LAKE BERRYESSA.
5. Stay straight to go onto NAPA VALLEJO HWY/CA-221 N.
6. NAPA VALLEJO HWY/CA-221 N becomes CA-121 N.
7. Turn RIGHT onto HENNESSY DR.
8. HENNESSY DR becomes COOMBSVILLE RD.
9. Turn LEFT onto 2ND AVE (Gate access not required).
10. At the end of 2ND AVE enter "Rapp Lane"

From Calistoga:

1. Turn onto SILVERADO TRAIL.
2. Left onto TRANCAS at the end of Silverado Tr at the light
   Stay to your right hand side.
3. Turn Right- back onto SILVERADO TRAIL.
4. Left on HAGEN ROAD.
5. Right on 1ST AVE.
6. Left on NORTH AVE.
7. Turn LEFT onto 2ND AVE (Gate access not required).
8. At the end of 2ND AVE enter "Rapp Lane"

From Santa Rosa:

1. Merge onto US-101 S
2. Take the E WASHINGTON ST exit toward CENTRAL PETALUMA.
3. Turn LEFT onto E WASHINGTON ST.
4. Turn RIGHT onto ADOBE RD.
5. ADOBE RD becomes CA-116.
6. Turn LEFT onto CA-121/FREMONT DR/CARNEROS HWY. Continue to follow CA-121 N.
7. Take the CA-121 N ramp toward LAKE BERRYESSA.
8. Merge onto W IMOLA AVE/CA-121 N.
9. Turn LEFT onto SOSCOL AVE/CA-121 N. Continue to follow CA-121 N.
10. Turn RIGHT onto HENNESSY DR.
11. HENNESSY DR becomes COOMBSVILLE RD.
12. Turn LEFT onto 2ND AVE (Gate access not required).
13. At the end of 2ND AVE enter "Rapp Lane"