Jw Marriott Ihilani Resort And Spa At Ko Olina Maps page on i4hawaii.com, Jw Marriott Ihilani Ko is located in Oahu, and is a 4.5 star rated hotel. This page shows the map of Jw Marriott Ihilani Ko. Use this to see the location of Jw Marriott Ihilani Ko and directions from nearby landmarks.