See http://www.camsecure.co.uk/SalcombeHopeCove.html . This webcam is not always on and is best viewed in good daytime light. They suffer from slowish broadband speeds in Hope Cove. You get a good view of the top of the beach from the Sun Bay Hotel, when on.
There are several other Devon webcams listed on this site.
For a full UK index see http://www.camsecure.co.uk/Camsecure_Live_Demo_Index.html .