Acadia, the white-tablecloth restaurant at 3000 Kavanaugh that has served American cuisine and fine wine for the past 16 years, is closing today. Owner James Hale announced on the restaurant’s Facebook page that June 30 was to be its last day and thanked patrons for their support. Acadia opened in July 1999, succeeding a health-food restaurant and adding decks for outdoor dining. Hale’s Facebook post did not say why he was closing the restaurant.