The McGaw ruins are situated north-west of White Horse Beach, on West Head in Ku-ring-gai Chase National Park. The property was originally owned by John Miller, who also owned large areas of West Head. The property was sold to Mr Eardley McGaw in 1928, on the condition that he built a house there. Mr McGaw built a two-storied house with several other smaller buildings, including a wharf. Mr McGaw and his wife lived there until he became ill, when they moved to Narrabeen and NSW National Parks took over management of the land. The house and other buildings were lost during a 1971 bushfire, leaving the sandstone foundations and ruins to be grown over with vegetation.