According to a Press Association report one of the six-man team, Briton Andrew Cotton, first spotted it several years ago while on board an Irish Coast Guard helicopter after being rescued from a surf accident off Mullaghmore, Co Sligo.
Last night some west coast surfers told Afloat.ie the location is most likely off the Sligo coast, up to two kilometres offshore and close to an underwater reef.
The terrifying-looking wave, dubbed 'Prowlers', was reportedly up to 50ft high on Tuesday when the Irish, British, Australian and South African surfers ventured out. Photos of it appeared on the front page of the Irish Times yesterday.
The surf team included Bundoran's Richie Fitzgerald who says he had waited for five years for the type of conditions required to surf it and on Monday the waves were in the 40-50ft range. Conditions were perfect due to the massive swell generated by Hurricane Tomas.