At the posted way point there is plenty of safe parking. It should be less than 1 mile total from start to finish, (unless the zombies get you). After parking and making sure that your crystal is working, proceed to the first waypoint and raise your crystal until the "Wise One" gives you the three needed digits to get to the next way point. .
Way point two is at: N 47 44.310 W 122 38.???. Once you arrive, have a nice look around at all the night creatures. Whilst there you will find the missing Nordic digit that will fill the void to get you to the next location. Count the glints.
Way point three is at: N 47 44.??0 W 122 38.230. Here you will (hopefully) find the info that will take you to the final! See, easy?
So, a good flashlight along with a short walk and a bit of math work should lead to a fun filled evening. Enjoy and use the hints if need be.
Do not post any pictures of the cache/way points or surrounding areas.