On November 7, 2006, Austin voters approved an $84.7 million bond program in tax-supported General Obligation bonds and notes for constructing, renovating, improving and equipping public parks, recreation centers, natural areas and other related facilities, including, without limitation, playgrounds, hike and bike trails, sport courts and swimming pools; and acquiring land and interests in land and property necessary to do so; and the levy of a tax sufficient to pay for the bonds and notes.