All versions signify the settlement of Iarddur, a key figure in the Middle Ages.

[1] At the centre of the beach lies an ancient burial ground known by the old names[clarification needed] and which was excavated in 2003.

There are also a number of self-catering holiday cottages, many with views of the sea and easy access to the beaches.

The village has a number of pubs and restaurants including The Driftwood, Ocean's Edge, Seacroft, Sea Shanty and Farrell's Bar.

Trearddur Bay Sailing Club (founded in 1919) has over 1,000 members but, unusually, operates only in the month of August.

Visitors can walk along the Anglesey Coastal Path towards neighbouring Rhoscolyn or in the other direction towards Porth Dafarch and on to South Stack and the RSPB Reserve and lighthouse.