Day 4: Optional El Fuerte River Float Trip Tour a 17th century cathedral & government palace Enjoy the Festive Mexican ballet folklorico (caravan.com)
Swimsuit is optional on the Campbell River Float tour - if you don't want to swim you don't need a swimsuit! (destinyriver.com)
On a more sedate note, float the Waikato River in one of Riverside Apartment's free kayaks, or alternatively, with an organised Waikato River float tour. (taupoaccommodation.co)