July 1, 2015 News helena Come Celebrate we are Open Canada Day 9 to 6 Related Articles Book your summer camp, spaces are still available. Posted On July 7, 2015 Happy Victoria Day Open Holiday Monday 9 am to 6pm. Posted On May 13, 2015 We will be open on Victoria Day! Bring the family! Twin Valley Zoo Open on August 7, 2017 Posted On August 7, 2017 We are open on the August Civic Holiday. Come bring the family!