National Aquarium in Baltimore! Through Friday, June 3 only, buy one adult ticket at regular price and get half off one child’s ticket. Purchase online here and use promo code CHILD50 at checkout to receive the discount.
Also, if your child received three As during any marking period this year, don't forget to save the date for the Aquarium's Grade A Student Night on June 30, 2011. Kids get in free and accompanying family members get in for just $5.