Ynys Bery

Ramsey Island (Welsh: Ynys Dewi) is an island about 1 kilometre (1⁄2 nautical mile) off St David's Head in Pembrokeshire on the northern side of St Brides Bay, in southwest Wales, in the community of St Davids and the Cathedral Close. It is 259 hectares (640 acres) in area and is owned by the Royal Society for the Protection of Birds. Ramsey means (in Old Norse) Hrafn's island. In Welsh the island is named after Saint David (Dewi Sant), the patron saint of Wales. It was the home of his confessor, Saint Justinian. The nearest large settlement is the city of St David's. Ramsey Island is less than 3.2 kilometres (2 mi) long and its highest point is 136 metres (446 ft) above sea level at Carnllundain, and is listed as a HuMP. It is the fourth largest island in Wales, after Anglesey, Holy Island and Skomer, and is surrounded by a number of islets, tidal islands and rocks.

Carnllundain or Carn Llundain is the highest elevation of Ramsey Island in Pembrokeshire, Wales.

The Bitches (also known as Bitches and Whelps) are a tidal race and set of rocks between Ramsey Island and the west Welsh coastline near St Davids. They are a popular tourist destination and a playspot for extreme waterboarding enthusiasts such as whitewater kayakers and surfers.

Pen Dal-aderyn in Pembrokeshire, west of St Davids, is the westernmost point of mainland Wales. Its name means 'bird-catching head' in Welsh.

St Justinian (or St Justinian's or St Justinians; Welsh: Porth Stinan) is a coastal location of indeterminate area in the extreme northwest of Pembrokeshire, Wales, in the community of St Davids and the Cathedral Close.

St Justinian's Chapel in Pembrokeshire, Wales, is now a roofless shell; the current structure was probably erected in the 16th century on earlier foundations, which may date from the time of the 6th and 7th century Saint Justinian to whom it is dedicated. The chapel is a Grade I listed building.

St Davids Lifeboat Station (Welsh: Gorsaf Bad Achub Tyddewi) is located at St Justinian, overlooking Ramsey Sound to Ramsey Island, approximately 2.5 miles (4.0 km) west of the cathedral city of St Davids, in the county of Pembrokeshire, West Wales. A lifeboat was first placed at St Davids in 1869, by the Royal National Lifeboat Institution (RNLI). By 2010, it had been involved in saving over 360 lives at sea, having launched more than 420 times. The station currently operates a Tamar-class All-weather lifeboat (ALB), 16-26 Norah Wortley (ON 1306), on station since 2013, and the much smaller D-class (IB1) inshore lifeboat (ILB), Marian and Alan Clayton (D-840), on station since 2019.

Trefeiddan Moor is a Site of Special Scientific Interest (or SSSI) in Pembrokeshire, South Wales. It has been designated as a Site of Special Scientific Interest since January 1966 in an attempt to protect its fragile biological elements. The site has an area of 21.61 hectares (53.4 acres) and is managed by Natural Resources Wales.

The Bishops and Clerks are a group of rocks and islets, approximately 1+1⁄2 miles (2.4 km) west of Ramsey Island, Pembrokeshire, Wales.

Clegyr Boia, or Clegyr Fwya, is a prehistoric site on the St David's peninsula, Pembrokeshire, Wales, 33 to 65 feet (10 to 20 m) above the surrounding area. It is about 1 mile (1.6 km) west of St Davids, and about 0.75 miles (1.21 km) east of the Pembrokeshire coast. The hilltop's rocky outcrop contains evidence of Neolithic and Iron Age settlements. The site's nearest water source was Ffynnon Lygaid, a 1 foot (0.30 m) deep pool, fed by a spring. Near the base of the outcrop's southern side, the pool is in a small hollow, measuring about 1 foot (0.30 m) by 8 inches (0.20 m). The site was excavated in 1902 by Sabine Baring-Gould, and by Audrey Williams, for the Ancient Monuments Inspectorate, in 1943. The outcrop became the stronghold of a 6th-century CE Irish pirate named Boia, after whom (with clegyr (English: crag)) it is now called.

The River Alun is a small river in northwest Pembrokeshire, Wales, which rises near Tretio Common and flows southwestwards to St Davids to empty into St Bride's Bay at the rocky inlet of Porth Clais.

St David's Head (Welsh: Penmaen Dewi) is a headland in the Pembrokeshire Coast National Park, southwest Wales, which marks the divide between the Irish Sea and the Celtic Sea. It is noted for its wildflowers and wildlife, and for the remains of ancient human settlement. The headland and its immediate hinterland are owned by the National Trust, and are accessible to the public by foot via the Pembrokeshire Coast Path. The westernmost point of mainland Wales, Pen Dal-aderyn, is located just to the south of St David's Head.