St George's Channel

[2] It separates Wexford on the southeastern corner of Ireland from St Davids in on the southwestern tip of Wales.

[5][6] Some geographers restricted it to the portion separating Wales from Leinster,[5][6] sometimes extending south to the waters between the West Country of England and East Munster;[6] the latter have since the 1970s come to be called the Celtic Sea.

[7] A 2004 letter from the St.George's Channel Shipping Company to Seascapes, an RTÉ Radio programme, said that St George's Channel bordered the Irish coast between Howth Head and Kilmore Quay, and criticised contributors to the programme who had used "Irish Sea" for these waters.

[8] The current (third, 1953) edition of the International Hydrographic Organization's publication Limits of Oceans and Seas defines the southern limit of "Irish Sea and St. George's Channel" as "A line joining St. David's Head (51°54′N 5°19′W / 51.900°N 5.317°W / 51.900; -5.317) to Carnsore Point (52°10′N 6°22′W / 52.167°N 6.367°W / 52.167; -6.367)"; it does not define the two waterbodies separately.

[9] The 2002 draft fourth edition omits the "and St. George's Channel" part of the label.