Thanks. Somehow, when Mapquest said "2 hours 11 minutes", I was not convinced. 93 + miles! I was thinking 35 mph. might be a realistic speed for this terrain and that would be more like 3 hrs. Last summer when I drove Hwy 1 along the coast in Sonoma county, traffic and terrain kept me between 35 and 40 mph most of the time. I really appreciate your advice on the tour reservations. I'll set it up in advance.