The route map.
It’s not always there. In fact, in the several times I’ve been to the Mokule’ia crag, it was nowhere to be found. But, there does exist a map of all the rock climbing routes on the Mokule’ia Main Wall and I finally got to see it. 26 routes ranging from 5.8 (beginner) to 5.13 (advanced). Check the supply box if you go and hopefully it’ll be there. We took in a climbing session here over the weekend and it was so much fun.