Trearddur Bay is a popular wide sandy bay backed by a sea wall and promenade located about 2 miles south of Holyhead. A dog ban operates on the southern half of the beach from 1st May to 30th September and beach wardens are on duty from late May to early September.
There are two P&D car parks (6' 6" height restriction) as well as some short term roadside parking. At the northern end of the bay is the RNLI lifeboat station, and the Waterfront Restaurant which has outdoor seating overlooking the bay. Other facilities include a slipway, toilets, drinking water, refreshment vans (in summer), cycle parking, a store / post office and a beach shop. Access to the beach is down steps or the slipway. There are smaller sandy coves with plenty of rock-pools at either side of the bay as well as a few rocky islets in the middle of the bay.
Surf conditions here can be good around mid-tide and when other beaches are blown out. The rocks can be a hazard.