From the Newport Aquarium web page...
Two kids (Ages 2-12) get in FREE with each adult paying full price.
January 6th-February 28th

Beginning Jan. 6, Winter Family Days tickets will be available at the Newport Aquarium ticket window, online at NewportAquarium.com or by phone at 800-406-FISH (3474).

Winter Family Hours is one of the most affordable family fun experiences around because two kids (ages 2-12) get in free with each adult paying full price. You can take your kids to see thousands of the most exotic aquatic animals from around the world and share in an experience they’ll never forget for less than the cost of a movie!

Extended Winter Hours
The aquarium will open one hour early (9:00 a.m. – 6:00 p.m.) on the following dates:

• Martin Luther King Jr. Weekend: Jan. 16-18
• Saturdays: Jan. 23 & 30; Feb. 20, 27
• Presidents Day Weekend: Feb. 13-15
• Sunday: Feb. 28
  

Additional Information Restrictions: May not be combined with any other coupons, discounts or special offers.

For more information, please visit the Newport Aquarium web page at
http://aquariumworks.org/