UK GDPR is concerned with
personal data: information about a living person who can be identified from it. A wide view of a bay, a mountain, a harbour or a skyline, where any people are distant figures nobody could recognise, is generally not personal data at all, and that is how the great majority of scenic webcams in the UK operate. The picture changes if a camera is close enough, or zoomed enough, for individuals to be recognised, or if it is pointed at a place where people live or work. In that case the operator of the camera is processing personal data and the ICO’s
video surveillance guidance applies to them. We are not lawyers and this is not legal advice; if you are unsure, ask your own adviser or the ICO.