Go north on HWY 80 To HWY 12 EAST.

Take HWY 12 To Rio Vista

In Rio Vista, just before crossing the bridge,
turn right and follow the signs to Ryer Island.
(You will go under the bridge and drive along the river)

Follow the signs to the Real McCoy Ferry. Take the ferry to
Ryer Island and turn left off the ferry. Stay on this road,
HWY 84, till you get to the Minor Slough bridge,
(FIRST & ONLY BRIDGE)

Cross the bridge and turn left and stay straight on the levee road to
ARROWHEAD HARBOR .(Do not turn down into the valley at the bridge)