Nu‘uanu Pali Tunnels
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The Nuʻuanu Pali Tunnels are a set of four highway tunnels (two in each direction) on the Pali Highway (Hawaii State Highway 61) which pass through the Nuʻuanu Pali. These tunnels serve as one of three trans-Koʻolau routes between Honolulu (leeward Oʻahu) and the communities of windward Oʻahu.