I need advice for driving from Portland to Calistoga starting on a Thursday morning in July and ending up in Calistoga at around noon 2.5 days later. I would like to do some sightseeing, possibly near the coast and also hit the Redwoods on Northern California. I am having trouble deciding how far to expect I can reasonably drive that time of the year while making stops to sightsee. Does anyone have recommendations on the route and most likely places to overnight? Also any great sightseeing spots?