May 14, 2018 News twinvalleyzoo Open all Victoria Day weekend! Bring the family and come join us for a great long weekend at the Zoo! Related Articles 4th Annual Autism “Family Day at the Zoo”, Saturday July 7th, 2018 Posted On May 23, 2018 Twin Valley Zoo is proud to host the Hamilton chapter in its 4th year of: "Family Day at the Zoo". This year's date is Saturday… Mothers are Free on Mother’s Day, May 14th, 2017 Posted On April 30, 2017 Twin Valley Zoo wishes all mothers a Happy Mother's Day and in honour of mothers everywhere all mothers (accompanied with a child) are free on… Get your 2018 season passes today and save! Posted On September 11, 2017 Get your 2018 season passes at the 2017 price as admission will be increasing in 2018.