Thorne Island

Milford Haven Waterway (Welsh: Dyfrffordd Aberdaugleddau) is a natural harbour in Pembrokeshire, Wales. It is a ria or drowned valley which was flooded at the end of the last ice age. The Daugleddau estuary winds west to the sea. As one of the deepest natural harbours in the world, it is a busy shipping channel, trafficked by ferries from Pembroke Dock to Ireland, oil tankers and pleasure craft. Admiral Horatio Nelson, visiting the haven with the Hamiltons, described it as the next best natural harbour to Trincomalee in Ceylon (today's Sri Lanka) and "the finest port in Christendom". Much of the coastline of the Waterway is designated as a Site of Special Scientific Interest, listed as Milford Haven Waterway SSSI.

The East and West Blockhouses were Device Forts built by King Henry VIII in 1539 to protect the harbour of Milford Haven in Wales. The two blockhouses were positioned on either side of the Milford Haven Waterway in the villages of Angle and Dale respectively, overlooking the sea. The East Blockhouse was never completed, but the remains were reused as a defensive site in the Second World War. The West Blockhouse was described by contemporaries as forming a round tower with gunports, but it was demolished when West Blockhouse Fort was built on the same site in the 19th century.

Chapel Bay Fort is located on the southern shore of the Milford Haven Waterway, Pembrokeshire, Wales. The fort is approximately 1 mile (1.6 km) from the village of Angle. One of a series of forts built as part of the inner line of defence of the Haven following the Royal Commission on the Defence of the United Kingdom, it is a Grade II Listed Building. and is also known as "Chapel Bay Battery". Construction began in 1890, and was completed in 1891 at a cost of £11,779. The battery was the first fortification in the area to be built of mass concrete. It could accommodate 91 men, and had mess room and sick bay facilities. Its initial armament was three ten inch rifled muzzle-loading guns. From June 1900 until August 1901 the battery was reconstructed to take more modern armament - three 6-inch Breech Loading guns. Throughout the First World War the fort remained in military hands, but it was decommissioned in 1920. It was sold to the Angle Estate in 1932. The battery was used during the Second World War when a mining observation post was built on the site. In recent years the fort was acquired privately, and now functions as a museum, following a £500,000 grant from the Welsh Assembly. One of the Fort's original 10-inch guns has been re-mounted as part of the restoration. The site opened to the public in April 2015.

The Angle Peninsula Coast on the southern side of the entrance to the Milford Haven Waterway in Pembrokeshire, Wales, is a Site of Special Scientific Interest. There is a wide range of wildlife and a former Royal Air Force station. The peninsula is rich in Second World War defences and the site of the former air base RAF Angle. The hollows in the banks around it were used to house machine guns in the Second World War and there was a searchlight battery here. Inland from East Picket bay are the remnants of the E-Pens used to house fighter aircraft if they were needed. In a field close to the World War I memorial there are the remains of an anti-aircraft post. On a section of the coastal path just past the RNLI lifeboat house there are visible remains of an anti-aircraft post. This site was later changed and used to house a 40 mm Rolls-Royce cannon. At the north hill, there are remains of a Laing hut that was used as housing for a searchlight. On a rocky patch of ground at west pill is a brick mine watcher hut. This was used specifically to watch out for the enemy who may be laying mines in Milford Haven. RAF Angle was an airfield during World War II. It opened in 1941 after Luftwaffe attacks against Pembroke Dock. The airfield, which began as a station for No. 10 Group, Fighter Command, housed several squadrons during the war such as No. 312 (Czechoslovak) Squadron RAF and the Canadian 412 Transport Squadron. Planes included Supermarine Spitfires, Westland Whirlwinds and Hawker Hurricanes. In 1943 operational control passed on to the Fleet Air Arm of the Royal Navy. During this time a Sunderland flying boat landed at Angle airfield after receiving hull damage during a rescue. It returned to the RAF and became home to the Coastal command unit who tested weapons that could be used against German U-boats. After the war was over the buildings were no longer used and many were removed in the 1980s; however, some still stand in remote locations. On 15 February 1996, the oil tanker Sea Empress grounded at the Milford Haven Waterway entrance, spilling 72,000 tonnes of crude oil. The coastline around Angle was severely damaged. The effect of the oil spill lasted several years and cost £60 million.

Royal Air Force Angle or more commonly RAF Angle, is a former Royal Air Force station located on the Angle Peninsula Coast, 8 miles (13 km) west of Pembroke, Pembrokeshire, Wales. It was operational from 1 June 1941 to 11 July 1946, having been used by both the Royal Air Force and the Royal Navy. The village of Angle is 0.5 miles (0.80 km) north of the airfield, which is located along the coast. Notable landmarks are, Freshwater West beach to the south of the airfield, and the St. Gowans lightship, 8 miles (13 km) south of Linney Head. The airfield opened as a RAF Fighter Command forward airfield, within No. 10 Group RAF as part of the Fairwood Common Sector. During the previous year the Luftwaffe had attacked Pembroke Docks and Milford Haven with the freedom from any consequences of air defences, causing a furore at high levels of state, and highlighting the need for anti-aircraft operations for the whole of the area.

Angle (Welsh: Angl) is a village, parish and community on the southern side of the entrance to the Milford Haven Waterway in Pembrokeshire, Wales. The village school has closed, as has the village shop (with a post office). There is a bus link to Pembroke railway station. The Sailors' Chapel, a Grade I listed building, is in the church graveyard. At Castle Farm, there is a Pele tower and above Castle Bay there are the remains of an Iron Age fort. On the headland there are visible remains of medieval strip farming.

Stack Rock Fort is a fort built on a small island in the Milford Haven Waterway, Pembrokeshire, Wales. A 3-gun fort was built between 1850 and 1852, and then upgraded from 1859 to 1871 with a new building that completely encased the original gun tower. It is now a Grade II* listed building and a scheduled monument (registered SAM number PE334).

Sailors' Chapel, Seamen's Chapel or Fishermen's Chapel is a Grade I listed building in Angle, Pembrokeshire, Wales. The chapel, which is dedicated to St Anthony, is located in the churchyard of St Mary's parish church. The chapel is a small, single-cell vaulted building above a raised and vaulted crypt. It was founded in the 15th century (1447) by Edward de Shirburn a "knight of Nangle". It was restored in 1853, and again by Elizabeth Mirehouse in 1862, and rededicated in 1929. Originally a receiving place, or charnel-house, for the corpses of drowned sailors, it became a chapel of rest in the 20th century. Constructed of coarse masonry under a modern tiled roof with a Celtic cross finial, the chapel has Victorian stained glass windows, one of which depicts the miracle of Christ walking upon the sea. There is a stone altar.

Angle Lifeboat Station is located near the village of Angle, on the southern side of the entrance to the Milford Haven Waterway in Pembrokeshire, Wales. A lifeboat was first stationed here by the Royal National Lifeboat Institution (RNLI) in 1868. Originally called Milford Lifeboat Station, the name was changed to Angle, Milford Haven Lifeboat Station in 1892. The station currently operates a Tamar-class lifeboat, 16-11 Mark Mason (ON 1291), on station since 2009.

South Hook Fort, on the northern shore of Milford Haven, Pembrokeshire, is a Grade II* listed building which belongs to a series of forts built as part of the inner line of defence of the Haven following the Royal Commission on the Defence of the United Kingdom.

The Esso Refinery at Milford Haven was an oil refinery situated on the Pembrokeshire coast in Wales. Construction started in 1957 and the refinery was opened in 1960 by the Duke of Edinburgh. Construction cost £18 million and the refinery had the initial capacity to process 4.5 million tons of crude oil a year.

Herbrandston is a village, parish and community on the north side of the River Cleddau, in Pembrokeshire, Wales. It is located to the west of Milford Haven and Hakin and east of St Ishmael's. Before 1960 and the building of the ESSO oil refinery, the village only had a population of 200; as infrastructure grew, so did the population. The size of the village increased within a matter of years, as housing estates associated with the refinery were built. The village has a population of 397, 15 per cent of which is Welsh-speaking.