Portland Bill is a tip of land at the south end of the Isle of Portland. It sticks out into the English Channel and is the southermost point of the county of Dorset. Portland Bill's low, rocky limestone cliffs have long been a danger to shipping and the Romans used beacons to warn vessels of their presence. The first permanent lighthouses built there date from the early 1700s. In 1844 an obelisk daymark was erected and is still there. The tall red and white painted lighthouse we see today shone its light for the first time in 1906. It remains active today, though is fully automatic rather than permanently manned.
photo © T. Boughen Camera: Nikon Z 5