Thanks. Tame is fine - if I have any time at all it would only be a few hours. I'm unfamiliar with the area or even the region.
Can you shed any light on this:
Beginning April 5, 2010, all gated roadways and trailhead parking areas will operate under new hours -- 5 a.m. to 7 p.m. Though gated parking areas, including restrooms and ramadas, will close at 7 p.m., the trails remain open until 11 p.m.
and take a taxi home? 11pm seems kinda late for a day hike. Better bring my headlamp.