Maen nhw'n amddiffyn gwerth miliynau o bunnau o gartrefi a busnesau ar hyd yr Esplanade, gan gynnwys y Pafiliwn Mawr. Ar ôl cryfhau'r amddiffynfeydd, bydd 260 o adeiladau'n cael eu hamddiffyn rhag y perygl o lifogydd ac erydu o'r môr.
The current defences protect several million pounds worth of homes and commercial properties along the Esplanade, including the Grand Pavilion. When complete, the strengthened defences will reduce the risk of flooding and erosion from the sea to 260 properties.