There are not many dining options along the Road to Hana. So, packing plenty of food and drinks for the trip is a must.
The Road to Hana (Highway 64) is just shy of 65 miles (105 km) one way. It is a slow drive with hairpin turns, one-way bridges and majestic views. If you have a child prone to car sickness, be prepared. There aren't many places to stop for provisions along the way.
Starting as early in the morning as you can makes for a much better experience, because it puts you on the road before the crowds. On the day of our trip, we left the hotel in Ka'anapali around 6 a.m.