Even if you only have time to drive thru the park it is worth it. Hiking is better. Driving and stopping at the vistas is a pretty decent option. Gorgeous views on all direction. Note that at times there might be an entry fee of $20 per out-of-state vehicle near the high point parking lot, but there wasn’t on the day that I went. Free entry. Maybe because it was later in the day. 5 minutes or less to the top of the tower if you go there. And great views all around.