Rockland to Searsport on Rt 1 is the closest that road will get to the coast. Its a 35 mile run but you'll still be away from the coast until you hit a village like Rockport. Great little towns to stop and explore for breakfast, lunch or dinner stops. I guess having been born there I take it for granted that everyone knows Maine's coastline is the most irregular of any state and most of the coastal roads are narrow winding and out and back, not through roads. I've bicycled probably 1600 miles of the state or more and half the coastal area and half inland. Even on a bicycle the best coastal road I found was along the coast of Kennebunkport which rolls past President Bush's compound at Walker's Point. Wouldn't go through there on the weekend though. So roads to villages such as Boothbar Harbor, the road from Kittery to the point along the tidal river out to the fort is cool. Five Islands Lobster Co on the point Georgetown, Me is highly recommended (check website for hours, open Sat/Sun after Labor Day. Camden is one of the larger "villages" along the coast that's not down a long point. The most quaint towns seem to have anchorages for sail and powerboats where sailors anchor and row in on their dingy to get supplies or meals, Rockport is also like that, Harraseeket just off Freeport and many more. Route 1 goes through Wiscasset which is a traffic nightmare as there is a famous lobster stop ( I think its Red's) right on Rt 1 at the bridge leaving town headed north which causes huge weekend traffic backups. I know this is pretty random but so is the coast. The Portland seaport (Commercial St) you need to park and walk to visit the waterfront, see the lobster boats with their catch coming in (if they haven't been run off by developement) There's a lot of yachts that tie up their on their summer coastal trips.
2003 Suzuki Volusia 800 Anniversary Edition