Enjoy lush scenery as you tube down a 17,000 acre sugar plantation throught a historic waterway. You will learn about the Lihue Plantation, local culture and tropical plant and animal life, the open channels flumes and amazing tunnels that were hand built in circa 1870 by plantation workers. Each tunnel is unique and magical especially when you turn on your head lamp to view these engineering wonders. Afterwards, enjoy a delicious picnic lunch and a refreshing dip in a mountain stream!