Join the HACC along with Davidson Homes as we celebrate the opening of Cain Park! Now Selling! Welcome to Cain Park! Five minutes outside of downtown Hartselle, this coming-soon community will feature some of our new, affordable floor plans. The charming, laidback area is located between Huntsville, Decatur and Cullman – allowing you to commute to any of the cities in 30 minutes or less.