For Israel’s 69th birthday on 2nd May, 69 heritage sites will be open for free. You can also visit four Air Force bases or watch the annual fly-past of 30 planes from 40 cities. Beaches, barbecues, concerts – see here for details.
http://loveloveisrael.com/2017/04/20/yom-haatzmaut-69/
http://loveloveisrael.com/2017/04/23/69-places-open-free-israels-69th-birthday/