Just as the queasiness in my stomach from the continuous onslaught of curves and cutbacks along the narrow uphill road began to subside, we rounded yet another 180-degree bend. The first waterfall with whipped-cream waters dripping down deep-creviced cleavages appeared by the roadside, its beauty washing away all my remaining reservations. It was the first of many such waterfalls we were to encounter. Such is the road to Hana, which traverses the northern coast of Maui in Hawaii, from the rustic village of Paia to its destination at the eastern tip. While only 52 miles long, this series of twists, turns, dips and dives can take up to three hours to negotiate. But the ever-present views of lush greenery and ocean blues, vistas of rock and white water foaming up over the shores, and waterfalls bubbling over craggy cliffs are well worth the daylong adventure. The road narrows even further—if …