From Page, AZ drive south on Highway 89 to between mileposts 544 & 545. Look for the exit lane and prominent dirt road on the west side of the road which you can drive a short distance on to the parking area.
Page is serviced by regional commuter flights through Contour Airlines. They have flights from Phoenix and Las Vegas starting at $29 each way. You can then rent a car from the only car rental business at the airport, Avis.