Rapid Sensations. The Grade 5 Wairoa and Mohaka rivers are accessible from Taupo, as are the Rangitaiki and more family-friendly Tongariro. Different rivers are open at different times of year, and operators run similarly priced trips, starting around NZ$120 per person. Call Rapid Sensations, which provides transportation, wet suits, equipment, and much-needed hot showers at the end. 413 Huka Falls Road, Taupo, Waikato. 64 7/374 8117 or 0800/353–435. www.rapids.co.nz.