Does the road wind uphill all the way?
Yes, to the very end.
Will the day's journey take the whole long day?
From morn to night, my friend.
In the next picture you'll see the end of the road, where we parked; if you can pick it out, the tiny little dot on the far left of the wider road on the left is my uncle's car, so you can see it was a bit of a climb, especially as we circled the hill rather than going straight up, choosing the longer rather than the much steeper trail (though we did take the steeper trail going down, which in retrospect wasn't terribly smart).
The nicest part of our walk was the park that runs parallel to the breakwater,
where people were enjoying the water, where I learned that Dana Point is named for Richard Henry Dana, Jr., who wrote the classic Two Years Before the Mast (which I've never read, but now I think I will),