Dart River Safaris. With Dart River Safaris you can get a nonpareil look at rugged Mt. Aspiring National Park, one of the most spectacular parts of South Island. Their route includes jet-boating on the upper and lower Dart River, along with a bit of walking and a back road tour of the "Paradise" area. The Funyak option takes you upstream by jet-boat, then you paddle gently downstream, exploring the Rockburn Chasm on the way. Shuttle buses depart daily from Queenstown for the 45-minute ride to the boats. Rates insclude transfer. Corner of Camp and Shotover St., Queenstown, 9300. 0800/327–853 NZ only; 03/442–4933. www.dartriver.co.nz. From NZ$219.
KJet. With the sun sparkling off the lake, wind whistling past, and traveling way faster than you had imagined, this is good holiday fun. KJet takes you on Lake Wakatipu and down two rivers, the Kawarau and Shotover, with some 360 spins along the way. Boats leave from Marine Parade where there's also an interesting underwater observatory. Reservations recommended. Main Town Pier, Marine Parade, Queenstown. 03/442–6142. www.kjet.co.nz. From NZ$119.
Shotover Jet. Shotover Jet leads high-speed, heart-stopping rides in the Shotover River canyons; it's got exclusive rights to operate in these waters. The boat pirouettes within inches of canyon walls. The boats are based at the Shotover Jet Beach beneath the historic Edith Cavell Bridge, a 10-minute drive from Queenstown. If you don't have transport, a free shuttle makes frequent daily runs. Reservations are essential. Gorge Rd., over the Edith Cavell Bridge at Arthur's Point, Queenstown, 9300. 03/442–8570; 0800/802 804 NZ only. www.shotoverjet.com. From NZ$129.