This page provides information about family vacations on the Big Island – Hawaii including family vacation packages in Kona, Hilo and along Kohala Coast. Best things to do with kids: visit to Mana Kea Observatory and Volcanoes National Park. Try surf lessons or ride horseback; go snorkeling or enjoy beach time; share stargazing, campfires on the beach, hula lessons, lei making, and pineapple tasting. Back to Hawaii family vacation ideas. Dont't miss Hilo Hattie's for pure fun. For more family vacation ideas select any of the following links. Hawaiian Islands, Oahu & Honolulu or Maui.