Troubridge Point is about 11 kilometres (6.8 miles) south west of Edithburgh.

It is the most easterly point of the Yorke Peninsula coast that directly adjoins Investigator Strait.

[2][3][4][5] Troubridge Point was formed when the sea reached its present level 7,500 years ago after sea levels started to rise at the start of the Holocene.

[6] The cliff line which includes Troubridge Point consists of a sedimentary rock called Port Willinga Formation.

[7] The water adjoining Troubridge Point drops to a depth of 10 metres (33 feet) at the base of its cliff face.