 The "High Light" lighthouse is one of Blyth's oldest structures. It stands to the rear of Bath Terrace and is 18.74 m (61 ft 6 in) tall. Built in three stages, the first section was constructed in 1788 to a height of 10.66 m (35 ft 0 in); a further 4.26 m (14 ft 0 in) was added in 1888, and the final 3.82 m (12 ft 6 in) was added in 1900. The original oil-fired lamp had a range of 10 nautical miles (19 km); it was upgraded to gas in 1857 and electricity in 1932. Prior to land reclamation in the late 19th century, the lighthouse had been much closer to the quayside. At some stage it became the rear of a pair of leading lights, and known as the' High Light '; the corresponding' low light ' has long since been demolished. Blyth High Light was deactivated in 1985 and listed Grade II on 15 July 1987.
