Tidepools in a rocky ocean coastline. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3293469/free-photo-image-architecture-beacon-buildingFree Image from public domain licenseMisty view of Neist Point Lighthouse on the Isle of Skye in Scotland https://www.rawpixel.com/image/935904/cliff-neist-point-lighthouseView license