Route 137 is a state highway located in the state of Hawaii. It runs through the scenic landscapes of Kauai, connecting the towns of Hanalei and Princeville. The route is known for its beautiful views of the ocean and lush greenery, making it a popular drive for both locals and tourists. The highway spans approximately 5 miles and is primarily used for local traffic. Along the way, travelers can access various attractions, including Hanalei National Wildlife Refuge and Na Pali Coast State Park. The road is well-maintained, providing a safe and enjoyable experience for drivers and cyclists alike.