A sense of the unknown for the riders heading into the 68th edition of cycling's Tour of Southland

Organisers have added an extra four kilometre climb to the gruelling fourth stage from Mossburn to the Remarkables.

Ben Oliver - who briefly wore the yellow jersey in 2022 - says it's difficult to make any pre-race predictions.



The tour begins at midday - with a team trial at Queens Park in Invercargill.