For those guests of House Of Dreams Kauai Vacation Rentals that thirst for an extreme adventure, The Secret Tunnel Hike may be the ultimate challenge.

1. •Kauai’s Secret Tunnel Hike was revealed to me by The Ultimate Kauai Guidebook. While that reading captivated me and was my motivation, I do not believe it captured the difficulty of this hike.
   

1. •The goal is a waterfall after hiking through a series of tunnels built to divert millions of gallons of water a day, back in the 1920’s. Eventually the tunnels were abandoned. But these tunnels, blasted through the mountains, still remain.
   

1. •This is a very difficult hike. We were up to our calves in mud for much of the first mile. The first time we did it took about 9 hours and in the end we were unable to cross the Hanalei river due to the rain and extreme currents. We did not encounter a single person the entire day. In spite of that, we attempted it again. It was much quicker this time and we reached our goal. We had great difficulty finding the second set of tunnels as this trail is obviously not used very often.
   

1. •The rush that came with completing this hike is worth all of the hard work. Bring plenty of water, proper footwear and lights to navigate the tunnels. We used head lights to free our hands. The tunnels are about a mile and a half in total with the first one being one mile long. There is about 6 inches of water on the floor the whole way through. Good luck and if you need more info, feel free to contact us.