Whisky Falls is roughly a 1.5-hours' drive away from either Blenheim or Nelson. The road surface is sealed, only last 2.8km is an unsealed road.

From Blenheim head west along the State Highway 63 until you reach St Arnaud. After 2km turn left onto un-sealed Mount Robert Road. There is a car park on both sides of the road (don't drive till the end of the road) after 2.8km. Toilet is available at Mt Robert Carpark (at the end of the road, 2km of further drive).

From the parking, follow tramping Lakeside Track which in roughly 1.5hrs brings you to a track junction. It is just 10 minutes walk to the base of the waterfall from here.

Return via the same route, total walking time is 3hrs. Alternatively, you can walk the whole Lakeside Track, which takes roughly 5hrs.

Best way to visit the waterfall is to combine the walk and a water-taxi: from Kerr Bay (Lake Rotoiti) take a water-taxi (as per 2019: Adults $20 Children $10) which stops at Whisky Falls. It is just 10 minutes' walk from here. Return either by the same water-taxi, or take a 1.5-hrs' walk via Lakeside Track back to Mt Robert Rd.