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From Kona Airport,
a 2 hour drive (93 miles):
 
Turn left at the stoplight at the end of the Airport access road onto Highway #19.  Follow 19 through Waimea and along the Hamakua Coast all the way to Hilo.  At the first light in Hilo turn right onto Waianuenue Ave and go up ½ mile; turn right onto Kaiulani Street.  Cross wooden bridge and go to very end  of  street,  through  chain-link  gate onto  the property.
Hawaii
The Big Island
Hilo
Kona
Waimea