If you want a loop, do the coast North to South ending in Crecent City, back NE toward Grants Pass. This will put you past Oregon Caves, historic Jacksonville, and a relatively short drive up to Crater Lake. From there, continue further east to US97 north. LaPine State Park is a great jumping off point for central oregon. Fort Rock area, Cowboy Dinner Tree, High Desert Museum, lava flows all over the area to explore. Plan a week at LaPine to see it all. But being a state park you will really want a reservation. In fact you will wantma reservation for any Oregon State Park. Coast is probably already booked solid for the summer. But there are some really nice private parks you might get in.
