
Lavan Sands is an intertidal sandbank found in the Menai Straits between Bangor, Gwynedd and Llanfairfechan, Wales. Totally underwater at high tide, at extreme low tides it measures 5.5-mile (8.9 km) east-west and 3.25-mile (5.23 km) north-south. At the western end is found another sandback Bangor Flats and just north is the sandbank Dutchman's Bank. At low tide the Lavan Sands make the narrowest part of the Menai Straits, at Beaumaris, a mere 237 m (778 ft). The area is designated as an SSSI due in part to the large numbers of Eurasian oystercatcher's that migrate there due to the freshwater streams that flow across it.

The Menai Strait is a narrow stretch of shallow tidal water about 25 km (16 mi) long, which separates the island of Anglesey from the mainland of Wales.

Afon Braint is a small tidal river on Anglesey, North Wales. There is a series of stepping stones near to the village of Dwyran, and a Grade II bridge near Penmynydd.

The Afon Cadnant is a small river on Anglesey, North Wales, which drains to the Menai Strait about 1 km north-east of the Menai Suspension Bridge. The river drains a largely agricultural area from Llandegfan to Llansadwrn and beyond, with feeder tributaries extending up towards Pentraeth forest.
The Afon Ogwen is a river in north-west Wales draining from some of the greatest peaks in Snowdonia before discharging to the sea on the eastern side of Bangor, Gwynedd.

Beaumaris Pier is a pier in Beaumaris, Anglesey, North Wales.

Britannia Bridge is a bridge across the Menai Strait between the island of Anglesey and the mainland of Wales. It was originally designed and built by the noted railway engineer Robert Stephenson as a tubular bridge of wrought iron rectangular box-section spans for carrying rail traffic. Its importance was to form a critical link of the Chester and Holyhead Railway's route, enabling trains to directly travel between London and the port of Holyhead, thus facilitating a sea link to Dublin, Ireland.

Church Island, also known as Llandysilio Island, is a small island in the Menai Strait on the shores of Anglesey to which it is attached by a short causeway that is reachable only on foot. The dominant feature of the island is with St Tysilio's Church, constructed in the 15th century, its churchyard, and a grade-II listed war memorial. The 20th-century bard Cynan is among several notable people buried in the churchyard. The Anglesey Coastal Path passes the head of the causeway.

HMS Conway was a naval training school or "school ship", founded in 1859 and housed for most of her life aboard a 19th-century wooden ship of the line. The ship was originally stationed on the Mersey near Liverpool, then moved to the Menai Strait during World War II. While being towed back to Birkenhead for a refit in 1953, she ran aground and was wrecked, and later burned. The school moved to purpose-built premises on Anglesey where it continued for another twenty years.

Fort Belan is a coastal fortress in North Wales. It is located opposite Abermenai Point, at the south-western end of the Menai Strait, on the coast of Gwynedd, in the parish of Llanwnda. Situated at the tip of the Dinlle Peninsula, the windblown, north-westernmost point of the Welsh mainland, the fort is cut off twice a day by the incoming tide. Of geographic importance because of its location, Fort Belan is an access point to both the north Wales coast and to Liverpool, England.

Y Foryd, also known as Foryd Bay, is a tidal bay in Gwynedd, Wales. It is located at the south-western end of the Menai Strait, about two miles south-west of Caernarfon. Several rivers flow into the bay and there are large areas of mudflats and salt marsh. A shingle spit partly blocks the mouth of the bay. At the north-western end is Fort Belan, built during the 18th century.

Garth Pier is a Grade II listed structure in Bangor, Gwynedd, Wales. At 1,500 feet (460 m) in length, it is the second-longest pier in Wales, and the ninth longest in the British Isles.

Glannau Porthaethwy is a designated Site of Special Scientific Interest (SSSI) along the northern shore of the Menai Strait in North Wales. It is a linear designation that extends some 4 km (2.5 mi) along the shore from Britannia Bridge in the west to Craig y Don in the east. It also includes the island shorelines of Ynys Gorad Goch, Ynys Welltog, Ynys Benlas, Ynys Tysilio, Half Tide Rock, Ynys Faelog, Ynys Tobig, Ynys Gaint, Ynys Castell and Ynys y Big.

The Menai Strait fish weirs are historically important fishing traps used in the fast-flowing tidal waters of the Menai Strait, which separates Anglesey from the rest of North Wales. The strait was particularly well suited to utilising fish weirs. The tidal waters pull huge volumes of water past the coastline with every tide, and the weirs and traps enabled fish to be concentrated into small holding areas from which they can be readily caught. Such methods are thought to have been used from earliest times, but the submerged and standing remains along both the Anglesey and Gwynedd coasts are from medieval and post-medieval periods, and in some cases were still in use into the 20th century.

The Menai Suspension Bridge is a suspension bridge to carry road traffic between the island of Anglesey and the mainland of Wales. The bridge was designed by Thomas Telford and completed in 1826 and is a Grade I listed structure.

Plas Menai is the National Outdoor Centre for Wales. It is situated on the mainland side of the Menai Strait, and is approximately 3 miles East of Caernarfon, North Wales.
Puffin Island is an uninhabited island off the eastern tip of Anglesey, Wales. It was formerly known as Priestholm in English and Ynys Lannog in Welsh. A hermitage was established here around the 6th century, and there are remains of a 12th-century monastery on the island. The island is also a Special Protection Area for wildlife.
Afon Seiont is a river in Gwynedd, Wales which runs into the Menai Strait.

The Swellies is a stretch of the Menai Strait in North Wales. The most popular use of the name is for the stretch between the Britannia Bridge and the Menai Bridge.

Trwyn Du Lighthouse, also known as Penmon Lighthouse, is a lighthouse between Black Point near Penmon and Ynys Seiriol, or Puffin Island, at the eastern extremity of Anglesey, marking the passage between the two islands.

Ynys Castell is a small island in the Menai Strait which separates Anglesey and mainland Wales. It is an extruding piece of Precambrian schist lying to one side of the Afon Cadnant estuary. It lies between Ynys y Bîg and Ynys Gaint. There is a causeway running to the island that is covered at high tide. On the island there is a private house. Ynys Castell means Castle Island in Welsh.

Ynys Faelog is a small tidal island in the Menai Strait between Gwynedd and the Isle of Anglesey, Wales, near the town of Menai Bridge. On average it measures 140 metres by 130 metres and is connected by a narrow stone causeway to the Anglesey mainland. There is a two-storey house on the island with three outbuildings and a boathouse.

Ynys Gaint is a small island in the Menai Strait connected to the town of Menai Bridge on Anglesey by a causeway and also a concrete bridge erected by Sir William Fison in the 1930s. Literally translated Ynys Gaint mean Kent Island.

Ynys Gored Goch, sometimes Ynys Gorad Goch, is a small island in the Menai Strait between Gwynedd and Anglesey in north Wales. It is situated in the stretch of the strait called the Swellies between Thomas Telford's Menai Suspension Bridge and Robert Stephenson's Britannia Bridge.

Ynys y Bîg is a small private island in the Menai Strait attached to the island of Anglesey by a wooden bridge. The bridge runs from the grounds of a private house, itself also called Ynys y Bîg, preventing any public access. The bridge fell into disrepair but was reconstructed in 2019.