The Makapuu Tide Pools are located on the lighthouse side of the Makapuu Point Lighthouse Trail, which is part of the Ka Iwi State Scenic Shoreline. The trail is off of Kalanianaole Highway in southeastern Oahu. (U.S. Marine Corps photo by Cpl. Nathan Knapke) - The Makapuu Tide Pools are located on the lighthouse side of the Makapuu Point Lighthouse Trail, which is part of the Ka Iwi State Scenic Shoreline. The trail is off of Kalanianaole Highway in southeastern Oahu. (U.S. Marine Corps photo by Cpl. Nathan Knapke)