Know Before You Go
Take the Del Monte exit off of the HWY 1 and go out towards the ocean. Straight ahead on the road you can see a parking lot. The road to the parking lot is often covered in deep mud, so don't get stuck. You can take roads through the fields that loop around to the parking lot, but this is private property and trespassing is illegal.
Once you are on the beach it is about a mile north through the sand to the barge. When you get to the barge, be careful. Climbing on it is not advised as the deck is rusty and old and you can easily fall through.