The place name of Olderfleet may be a corruption of Ulfrecksfiord (or Ulfried's Fjord), the Viking name for Larne Lough.
[1][2] Olderfleet Castle is a State Care Historic Monument in the townland of Curran and Drumaliss, in the former Larne Borough Council area, at grid ref: D4133 0166.
[5] In 1315 Edward Bruce landed here with his 6000 strong army en route to conquer Ireland, with a welcome from the Bissetts.
Queen Elizabeth I considered the castle of such strategic importance that it was seized for the crown and Sir Moyses Hill appointed its governor in 1569.
[2] The square remains show that it only had 1 metre thick walls and it is without visible domestic features, which means that it could have been built as a fortified warehouse and watchtower.