[1] Coal had originally been planned to come from the Mataura field, but was eventually sourced from Westport.

[3] When the industrial use of the iron ore in nearby Parapara was first considered in the early 1900s, it was envisaged to build a wharf north of Tukurua Point.

[4] The Parapara iron ore had since the 1870s been used for making red paint, with a tram eventually connecting to a wharf.

[2] However, in 1923 the company was granted permission to build a pier 365 metres long from Onekaka Beach to deep water.

[7] Onekaka Ironworks Wharf and Tramline Piles have been declared part of New Zealand's cultural heritage, which has "significance as a poignant physical link to an ambitious iron mining and smelting scheme".