Groupon: Half Off Living Planet Aquarium Annual Membership

Update: sold out
Today's Groupon is a great deal for the Living Planet Aquarium:

-For $10 you can get a 1-year membership for an adult ($20 normally). 

Or

-For $8 you can get a 1-year membership for a child age 3-17 ($16 normally).

A one day memberships is $9 for adults and $8 for kids - so this a great deal.