RAF Hell's Mouth - Credit: Wikimedia Commons
Royal Air Force Hell's Mouth, or more simply RAF Hell's Mouth, is a former Royal Air Force air gunnery and bombing range. It was initially redeveloped into a Relief Landing Ground, and then became an Emergency Landing Ground. It is situated at Hell's Mouth (Porth Neigwl), on the Llŷn Peninsula, near the small village and community of Llanengan, and about from Abersoch, Gwynedd, Wales. Read more on Wikipedia
Source: en.wikipedia.org