We stayed here with family last summer.
Great location with door to small beach.
A good few great pubs with food and great walks along the coast. Plymouth and the eden project aren’t too far.
http://www.kingsandbeachhouse-holidays.co.uk

Some spectacular places here. Pretty certain they have a lighthouse you can stay in (don’t quote me, i could have seen it somewhere else!)

You can stay in the cottage attached to Start Point Lighthouse, just along from that photo I posted up of Hallsands, it’s owned by Landmark Trust, who own a great many interesting properties. It’s possible to rent cottages on Flatholm in the Bristol Channel, and also Lundy Island as well, I believe.
http://lighthousesforsale.co.uk/flat-holm-island/
https://www.landmarktrust.org.uk/Search-and-book/location/lundy/