[1] The western side of Colwyn Bay, Rhos-on-Sea, includes a number of historic sites associated with St Trillo and Ednyfed Fychan, the 13th century general and councillor to Llywelyn the Great.

King Richard II (1367–1400) was ambushed in Old Colwyn in 1399 by supporters of Henry Bolingbroke as he returned to England from Ireland.

[3] During World War II the Colwyn Bay Hotel, Marine Road (now demolished) was the headquarters of the Ministry of Food.

Bay of Colwyn Town Council is a statutory body, covering the communities in the urban area.

[9] The town is situated about halfway along the north coast of Wales, between the sea and the Pwllycrochan Woods on the towering hillside.

Like the rest of the British Isles, Colwyn Bay experiences a maritime climate with cool summers and mild winters, and often high winds.

Also the Victoria Pier hosted many dances and shows during the 20th century and became popular with touring bands and artistes through the 1960s until the final gig there in August 2008.

The Porth Eirias Watersports Centre offers tuition in sailing, windsurfing and power boating as well as kayak and canoe hire.

The fate of the pier was initially uncertain; the council hoped it would be "substantially" demolished for "health and safety and visual reasons to be able to re-open that section of the beach”.

[19] Llety'r Dryw is a Grade II listed house in Abergele Road, built for the uncle of Anthony Eden and now used as the training centre for North Wales Police.

It was designed by Thomas Hayton Mawson for a house that was not ultimately built, and is listed at Grade II on the Cadw/ICOMOS register.

Fees at this elite public school exceeded more than £34,000 per year for boarding in 2021 and boasts the only Eton Fives courts in Wales.

As of 2012, the RGC 1404 rugby team play at Eirias Stadium in Colwyn Bay as part of a development venture by the WRU.

[26] The Black Cat Cycling Club, founded in 2014, is based in Colwyn Bay[27] with members made up of cyclists from the town and the surrounding area.

Glamorgan County Cricket Club traditionally play one first-class game a year at Colwyn Bay.