OK, here are some rather complicated directions
Address: 22472 Waters Drive, Cedar Pines Park, Ca.
FROM anywhere in So. Cal, find Highway 30. It is just on the northern border of San Bernardino and has access directly from the 215, the 10, and now (YAY!) directly from the 210. The 210 connector is complete and it turns into Highway 30 at it's eastern terminus. All freeway.. all the way!
From Highway 30, you will take the Waterman Avenue/Highway18/Mountain Resorts exit. Go NORTH.
Stay on Waterman Avenue. At 40th street, it will become Highway 18. See that big hill?. Thats where you are going.. 12 miles up.
You will take the Crestline/Lake Gregory Regional Park exit at the crest of the mountain. You are now on Highway 138.
Continue on the 138 to the first stop. Go through the stop (After you stop, of course) and just as soon as you crest the "Hump" in the intersection, you will see a street angle off to the left. This is the continuation of Highway 138. Veer onto it. (Hey... you now know why I call this berg Hooterville)
It is a short but somewhat steep and windy downhill leg. At the "T" (Refer back to second map)
Continue to the stop at Waters drive. Turn left.
Continue on Waters to 22472. I will place a big sign out on Waters, on the right, to direct you into the property. It creeps up on you, but if you overshoot, there is a large church parking lot you can turn around in a block or so down the street.
If at looking at the map you think you can come up the backside of the 138 from the 15... fohged aboud it! That route is not easily navigated with a trailer in tow. Highly unrecommended. Very steep, very windy, single lane.. and is dangerous. It will only take 10 mins to get to Highway 18 from that point on the 15.. relax.. and enjoy, er, San Bernardino...