Corniche is a noun that refers to a road running along the coast. 

Our word of the day comes directly from French. Since the mid 19th century it’s been used to describe a road along the edge of a cliff or the coast. Here’s an example:

Taking the corniche to San Francisco may be a little more time-consuming, but the view makes it worth it. Whoever decided to put a road along the coast gets my vote for the state Governor.