I don't think it's particularly hidden, but do stop in Manzanita when you drive down the coast. It's a small town that fronts on a spectacular beach. Places to stay range from fancy B&B's to basic motels. In May it should still be fairly easy to book.

Here's a link to some information about Manzanita: http://nwcoast.com/city/default.asp?city=manzanita&rid=4092

Enjoy the trip - the Oregon coast is a glorious place.

Julie In Seattle