Convoy OA 178

Cave Hole is a large cave on the south east side of the Isle of Portland, a large peninsular in Dorset, England. It has a blowhole and a wooden crane, known as Broad Ope Crane on the cliff top. It is 1⁄2 mile (800 m) north-east of Portland Bill, has an interior measuring 50 feet (15 m) square and 21 feet (6.4 m) high. Cave Hole was earlier known as Keeve's Hole and regularly featured in recorded history and wider lore of smuggling. It is made up of a series of caves with steep roof sections, tunnels and ledges, and represents the first stage in cave collapse. The cave and its surrounding area is frequently used for deep-water soloing. The cave's blowhole, which stretches far into the solid rock, was formed when the roof of the cave was broken through to the surface. For the protection of people looking down into the cave, an iron grill has been installed across it. Whenever a powerful easterly gale occurs, the sea shoots up through the fissures.Various small craft have been driven into the cave by east and south easterly gales, the largest of which was a 40-ton vessel from Cowes in 1780. Frank and Ann Davison were shipwrecked at the cave in 1949. The pair had set sail for the West Indies. Frank drowned but Ann managed to scramble ashore. A local tale has long reputed that the cave is home to Roy Dog - a black dog, "as high as man, with large fiery eyes, one green, one red". It is said that the creature emerges from the watery depths to seize any traveller passing by Cave Hole and drags them down into his dark watery domain.

Culverwell Mesolithic Site is a Mesolithic settlement, located on the Isle of Portland, Dorset, England. It is found in the local area known as Culverwell, along the Portland Bill Road. It is within an area of unspoiled countryside, with no past quarrying. The site is maintained by the Association for Portland Archaeology – a small group dedicated to researching, investigating and excavating on Portland.Open days have been held on the site, where guided tours take place of the preserved site, showing and explaining the visible remains and artefacts and how Mesolithic people lived. In 2004, the Culverwell Mesolithic Site won an archaeological award; the prestigious "Pitt Rivers Award", for developing this Mesolithic site on Portland.The surrounding fields between the Bill and Southwell are made up of an ancient strip field system, once found all over the island before quarrying continued to destroy them. These particular fields remain untouched from housing or quarrying. Culverwell Mesolithic Site has become a scheduled monument under the Ancient Monuments and Archaeological Areas Act 1979.

Freshwater Bay is a bay on the east side of the Isle of Portland, Dorset, England, south from Church Ope Cove and between the villages of Wakeham and Southwell. It forms part of the Jurassic Coast. Freshwater Bay takes its name from a freshwater spring which emerged at the bottom of the cliff. An Admiralty pumping station was built on the clifftop in the 19th century for supplying fresh water to the naval base and to the harbour's breakwaters during their construction. Cheyne House was built for the attendant of the station. The man-made tunnel for the pumped water was known as Cheyne Tunnel, and in 2011 this was blocked by a rockfall.For many decades and through to the second half of the 20th century the bay was in regular use by commercial fishermen.The Great Southwell Landslip, Britain's second largest recorded historical landslide, occurred in 1734, between Durdle Pier and Freshwater Bay, along a length of 1.5 miles (2.4 km).Freshwater Bay is reputed to be one of the best places on Portland for fossil locating. The area is known to be popular for fishing, and the cliffs of the bay are also popular with rock climbers.

The Great Southwell Landslip occurred in 1734 on the Isle of Portland, Dorset, England near the southerly village of Southwell and extended for a length of 1.5 miles (2.4 km) between Durdle Pier and Freshwater Bay. It remains Britain's second largest recorded historical landslide.

Southwell Methodist Chapel is a former Methodist chapel at Southwell, on the Isle of Portland, Dorset, England. The chapel was built in 1849 between terraced cottages on the east side of the road leading from Southwell to Portland Bill. It closed in 1997 and is now a private residence. It has been Grade II Listed since May 1993.By the middle of the 19th-century, government works and defences led to a large increase within Portland's population. This increase saw a revival for the island's non-conformists, who were assisted by the help of influential leaders, as well as the available chapel-building funds available from the new money of the government works. The residents of Southwell had their own small chapel opened during July 1849. Now privately owned, and functioning as a holiday let under the name "Chapel Cottage", the chapel remains a modest but complete manifestation of the importance which Methodism played in the island's social history.

Southwell (pronounced south-well) is a small coastal village in Tophill on the Isle of Portland, Dorset. As Portland and Dorset's southernmost village, it lies between Portland Bill and the villages of Easton and Weston. Though close to the Bill, the village is sheltered by hills on three sides. It is the only village on Portland not to be designated a conservation area.The Great Southwell Landslip, named after the village, remains Britain's second largest recorded historical landslide on the east side of Portland, occurring in 1734, between Durdle Pier and Freshwater Bay, at a distance of one and a half miles.

The Avalanche Memorial Church, also known as the Church of St Andrew, is a Church of England church in Southwell, on the Isle of Portland, Dorset, England. It was built in 1879 and remains active as part of the Portland Parish. The church, along with its boundary wall, has been a Grade II Listed building since September 1978.The church was designed C.R. George Crickmay in an early English style. Built by Lynham and Bayliss of Portland, it was completed in 1879 and consecrated by the Bishop of Salisbury on 3 July. The church is not to be confused with the ruins of Portland's first parish church, the 13th century St Andrew's Church.

The Old Lower Lighthouse is a disused 19th century lighthouse on the Isle of Portland, Dorset, southern England. It is located along the eastern side of Portland Bill. The lighthouse, including its boundary walls and coastguard house, became Grade II Listed in September 1978.Working alongside the Old Higher Lighthouse from 1716, the lower lighthouse has subsequently been rebuilt twice, once in 1789 (when it became the first working lighthouse to have its light intensified by lenses and again in 1869. The lighthouse seen today was built in 1869 and has been the home of the Portland Bird Observatory since 1961.

Coombefield Quarry is an active stone quarry located on the Isle of Portland, Dorset, England. It is situated near the island's southernmost village Southwell. The large quarry has been worked over many years, and has two voids known as Coombefield North and Coombefield South. The quarry today incorporates the former Suckthumb Quarry, which is situated at the northwest part of the quarry, and is now filled in. The quarry is owned by Portland Stone Firms Ltd, along with Broadcroft and Perryfield Quarry. The firm is the largest landholder on the island.

Minerve (Q185/P26) was the lead ship of the Minerve-class submarines of the French Navy. Commissioned in 1936, during World War II she served in the Free French Naval Forces, and was wrecked in late 1945.

Red Crane is a crane on the Isle of Portland, Dorset, England. It is located on the cliff edge at Portland's southerly point, the promontory Portland Bill. It is part of a disused stone loading quay, which is now a scheduled monument.

Church Ope Cove is a small secluded beach on the sheltered eastern side of the Isle of Portland in Dorset, southern England and is part of the Jurassic Coast. It is found close to the village of Wakeham. The beach has many unusual features for the Isle of Portland. The beach used to be sandy, but quarry debris now covers the sand, and has been worn into rounded pebbles. The pebbles cover a small stream which runs to the sea, which is one of the few active streams remaining on the Isle of Portland.