[2] From medieval times until the 19th century the creek functioned as an access to the sea for neighbouring farms, whose boundaries all extended to the water at this point.
With the local abundance of good quality granite, it was developed as a port to export the building material in the 19th century .
A track was built along the North bank of the creek with a retaining wall, and a quay with cranes was constructed for wharfs alongside.
[4] It is now mainly a residential and leisure area, with moorings for small craft, and pontoons at a club sited on the upper quay.
Porth Navas's popularity depends on its beauty as part of the Helford River, and the present return of the lower quay for commercial use in connection with the oyster fishery has aroused controversy.