View this page for information about family vacations on Maui and Kauai including trip advice, and family vacation packages. Browse for the best family vacation ideas in Lahaina, Kahului, and the Kaanapali Coast. Best things to do with kids include a visit to Haleakala Crater and whale watching in spring. Try surf lessons; go snorkeling or diving; share stargazing, ziplining, hula lessons, pineapple tasting, spa time and shopping. Back to Hawaii family vacation ideas.