August 23, 2018 News twinvalleyzoo Open all Labour Day weekend! Come join us at the Zoo during this upcoming long weekend! Related Articles Opening Day May 5th! Posted On April 10, 2018 Come join us on Saturday May 5th at 9am for our Opening day! 25 Years of Great Memories! The Zoo Turns 25. Posted On August 13, 2015 We are excited to announce that 2015 is the Brantford Twin Valley Zoo's 25th Anniversary! The Brantford Twin Valley Zoo would like to send a… Twin Valley Zoo Open on Canada Day! Posted On June 30, 2017 We are open for Canada Day! Come bring the family and celebrate Canada's 150th at the zoo.