Driving Hana Highway was quite an exciting experience for us. Although Hāna is only about 52 miles (84 km) from Kahului, a typical trip to Hāna takes about three hours, as the road is very winding and narrow and passes over 59 bridges, 46 of which are only one-lane bridges, requiring oncoming traffic to yield and occasionally causing brief traffic jams if two vehicles meet head-on. There are approximately 620 curves along Highway 360 from just east of Kahului to Hana, virtually all of it through lush, tropical rainforest. Many of the concrete and steel bridges date back to 1910 and all but one are still in use.