Why pay a steep $15 per person – not per carload, mind you – to visit an arboretum when the entire Road to Hana is a garden? Well, it does offer a tamer version of paradise. The winding paths are neatly maintained, the flowers are identified, and the hilltop picnic tables sport gorgeous views, including ones of Puohokamoa Falls and Keopuka Rock, which was featured in the opening shot of Jurassic Park. A good choice for those not up for slippery jungle trails.
There’s also a nifty art gallery, the Fractal Gallery, located within, its entrance guarded by peacocks. The arboretum is 0.5 miles past the 10-mile marker.