This is a night cache. It cannot be found during the day.
Let the eyes guide your way to the cache.
There are eyes in the night that glow when you shine a light on them. The eyes vary in brightness. The brighter ones can be visible from over 200 feet away while the dimmer eyes require you to be closer and to pay closer attention. You will need a flashlight to follow their lead to your destination. The brighter the flashlight the further away you will be able to see the eyes and the brighter THEY will be. For best visibility hold your flashlight at eye level.
The coordinates above are not for the cache location, they are for your starting point. You will spot the first of your guides ~80 feet to your West. You will find 3 eyes there. One bright and two dim. They will give you an idea of what to look for as you proceed.
Your journey will be less than a mile from the coords, mostly along well marked trails. Only the last 100 feet or so will be off the main trails. You will recognize you final location by the three bright eyes there. You will come to intersections. In each case you should find a bright eye a short distance down the correct path. Between intersections there will be variable distances between eyes, so do not worry too much if you do not immediately see another eye as long as you are going along a trail without intersections. The bright and dim eyes generally alternate after the first few bright ones. In a couple spots there are telephone poles with reflective stripes. Do not be lead astray by them.
Administrativa: The park is closed after 10 pm so plan your trip to be complete before then. There is a gate at the nearest park entrance that does get locked so be mindful of the time so as to not be locked into the park. The closest parking to the starting point is at the Chabot gun range, however the gates to that area of the park are generally locked when the range closes (probably before dark), so even if you go to the park when it is still light don't park at the range or you may get locked in.
The additional waypoint is he closest safe parking to the starting point. The shortest route from this parking area to the starting point is via the road to the range (about half a mile), otherwise you can go along the Brandon Trail which is somewhat longer (about a third of a mile longer). You can also park at the Marciel Gate along Redwood Road which will add roughly 1.6 miles each way to your trip, but you don't have to worry about the park entrance gate being locked.
Additional considerations: Bring a friend or two. More eyes will help in spotting the Eyes. And company will make the trip a little less spooky :)
Watch your footing. The trails are mostly lined by eucalyptus which tend to drop lots of small debris on the trail.
Bring a print out of the cache description.
Be sure to bring extra batteries for both your lights and your GPSr.
Bring a BRIGHT flashlight. I used an 80 lumen flashlight in placing the cache and had the placement tested by folks with similar lighting which should give you an idea of the best tool for the journey.
There are a variety of trading items in the cache as well as a separate zip-lock of pathtags made specifically for this cache. Please only take one per person in your group and let me know how many are left in your log.
Thanks to Chuguy for the inspiration.