Things To Do In Mililani Town - Deals on Activities in Mililani Town, HI | Groupon groupon.com Top things to do in Mililani Town, HI : Discover the best activities this weekend and beyond in Mililani Town with deals of up to 70% off. General Admission to Bishop Museum (Up to 19% Off). Up to 25% Off on Museum at Pearl Harbor Historic Sites. Up to 42% Off on Whale / Wildlife Watching at Pink Sails Waikiki. .... read more