Koolau Reservoir   Be the first to submit input for Koolau Reservoir. If you have info on Koolau Reservoir, Honolulu County, Hawaii please submit it here to improve this web site.          These outdoors activities are available near Koolau Reservoir.   Lakes Near Koolau Reservoir: Waokele Pond, Honolulu County, 14 miles away   Public Lands Near Koolau Reservoir: Wahiawa Freshwater State Park, Hawaii, 3 miles away Sacred Falls State Park, Hawaii, 7 miles away 'Aiea Bay State Recreation Area, Hawaii, 8 miles away   Marinas On or Near Koolau Reservoir: Makani Kai Marina AOAO, Kaneohe, 13 miles away Ko Olina Ocean Marina, Kapolei, 14 miles away   Hotels Near Koolau Reservoir: Paradise Bay Resort, Kaneohe, Oahu, 10 miles away Tiki Moon Villas, Laie, 10 miles away Ohana Honolulu Airport Hotel, Honolulu, Oahu, 11 miles away Best Western The Plaza Hotel, Honolulu, Oahu, 11 miles away Castle Pacific Marina Inn, Honolulu, Oahu, 12 miles away   Hiking Trails Near Koolau Reservoir: Summit Trail, Honolulu County, 4 miles away       19.4 hiking miles, 1611 feet elevation difference Kawailoa Trail, Honolulu County, 6 miles away        9.4 hiking miles, 1408 feet elevation difference Castle Trail, Honolulu County, 6 miles away        7.6 hiking miles, 2794 feet elevation difference   Golf Courses Near Koolau Reservoir: Mililani Golf Club, Mililani, 4 miles away Royal Kunia Country Club Restaurant, Waipahu, 7 miles away