This map leads you to a trailhead that is about 3+ miles from the shipwreck. I may have missed the actual trailhead because I just went straight down to the beach and started scrambling over rocks. It was a tough walk doing the full 3 miles. Definitely wear good hiking boots with ankle support and check for low tide. I wouldn't bring a dog. All the rocks would have to be rough on their paws. When leaving I doubled-back for about a mile and took a trail up to the main road.You could start nearer these entrance trails to reduce your rock hiking. There are a few off of Palos Verdes Drive.