The Nettle Hill King of the Mountain (KoM) is one of the most decisive climbs on the Fleurieu Peninsula and is expected to play a pivotal role in Stage 4 of the 2027 Santos Tour Down Under. Approaching the finish in Victor Harbor, the climb comes late in the stage and is perfectly positioned to encourage attacks from riders looking to distance the sprinters before the run to the line. Race organisers have highlighted Nettle Hill as a key launch point for aggressive racing, with a flurry of attacks anticipated as the peloton approaches the coast.

Although relatively short, Nettle Hill is a demanding ascent, climbing approximately 1.85 kilometres at an average gradient of 8.9% and reaching an elevation of around 230 metres. Its steep slopes favour explosive climbers and punchy all-rounders, making it an ideal terrain for riders seeking stage victory or valuable time gains. With the summit close to the finish in Victor Harbor, the climb is likely to be a critical moment in the race, where strong contenders can launch decisive moves before the final dash to the Esplanade.