Any suggestions on how much time to spend in the areas and things to not miss? We have 8 days near the end of next month. We usually take our time and stop whenever we see something we want to check out... lots of photography stops. No kids. I know we want to spend at least a full day at the Redwoods in Northern CA and I figure full 3 days for the Oregon Coast. Is this enough time or should I spread it out a bit more? We don't usually go on long hikes (3+ hours). We've been to SFO a number of times and its really tacked on the end just for the cheaper flight home. Any suggestions on what we can't miss is greatly appreciated.