Went here several times in 2005 and 2006. There are other trails (hard to follow) that make a circuit around the park...one goes to the old quarry, an interesting side trip. Just don't step on the plants.
"As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life - so I became a scientist. This is like becoming an archbishop so you can meet girls."