Vancouver Aquarium 2 for 1 coupon

[Badger]

Just wondering if anyone here has an extra 2 for 1 coupon from the Entertainment Book for the Aquarium that they are not planning to use and would not mind giving it away or sell it to me at a nominal cost.

I haven't been to the aquarium in over 10 years and would love to visit the new penguins.

[exhaust]

My 2.5 years old niece would like to visit today. I know under 3 years old is free. Other than via Entertainment Book is there another way to get discounts at the Aquarium? Groupon? Living Social? Help please.