Boat Harbour is a small beach located on the north-eastern side of the Kernell Peninsula originally inhabited by the Gweagal Aborigines.
The first land grant was issued in 1815. 700 acres of land on the Kurnell Peninsula Including Boat Harbour was issued to James Birnie, a Whaler and Merchant. He named his land ‘Alpha Farm’ and built himself a cottage. When James Birnie was declared insane in 1828, John Connell gained possession of his property.
John Connell passed away in 1848 leaving his estate to his grandsons and In 1861 the property was sold to Thomas Holt for for £3275. Holt sailed into Sydney sometime in 1842 and made his fortune during the gold rushes of the early 1850s.