Cache is not at the listed coordinates.
They are for waypoint 1.
This simple 2 stage multicache is part of my series of geocaches along the beach dunes trails in Ocean Shores. The shortest and easiest route is to take Taurus Blvd SW to the beach, turn right onto Ocean Shores Beach Highway (yes, the beach really is a road), then walk inland from waypoint1. Heed the tide charts and keep in mind both your vehicle's ability to traverse the sand as well as your own. Using this method your walk could be less than .3 mile.
Using the Taurus Blvd entrance route will cover about 1 mile and may require boots after heavy or prolonged periods of rain.
At waypoint 1:
Approximate height of the horizontal crossbar = C
If 3.5ft, C=79
If 6.5ft, C=75
If 9.5ft, C=71
The cache is located at N 46° 58.50(C-71)' W 124° 10.2C'
See Dune Walk #10, GC9C21R, for general information that applies to all geocaches in this series.