Day 4 began with a hike through the Kohala Forest
Reserve on a trail leading to the valley head of Waipio
Valley. The hike took us through a bamboo forest, along an
irrigation system, and to the ridge of the valley. At the
beginning of the hike, the bamboo forest was not very prevalent.
About 20 minutes into the hike, the bamboo was completely surrounding
us.
The irrigation system was built to transport water to the sugar cane plantations. The ditch
took 600 workers and 18 months to build. The ditch is about 22
miles longs and consists of 57 tunnels.
At the end of the
hike, we found ourselves standing on the 3,200 foot contour and
staring straight down a 2,000 foot valley wall. On the other
side of the valley was a 1,000 foot water fall, with thick
vegetation surrounding the valley.
The irrigation ditch is no longer used for
agricultural purposes because the sugar cane plantations have moved to
other islands. The ditch is now used to supply water to the
low land areas for domestic uses and as a source of
recreational tourism. The weather for
this section of the hike was extremely foggy and in the high 60's
for the temperature. There was scattered showers which made
the hike a little wet.