If you are unfamiliar with the Western Cape, here is a map and a few routes to find your way to Thornbay from various locations.
From Cape Town
(Total Tar route) N7 to Klawer turn 0ff - towards Vredendal – before Lutzville river bridge a sign to turn Strandfontein / Doringbaai
(40km gravel road between Lambertsbay and Doringbaai) – R27 – Velddrift – Dwarskersbos – Elandsbaai – Leipoldtville – turn towards Lambertsbay – Gravel turn to Vredendal / Doringbaai
From Springbok ( short route) – Garies – Bitterfontein – Nuwerus turn (35km gravel) to Landplaas – Koekenaap – Lutzville – turn to Strandfontein / Doringbaai
From Springbok (long route) Lutzville– Garies – Bitterfontein – Van Rhynsdorp – Vredendal – Lutzville turn to Strandfontein / Doringbaai