Ivar’s will celebrate its flounder’s 109th birthday on March 18 with a clamtastic buy one, get one for $1.09 dining deal and free birthday cake for the first 109 customers at its full-service restaurants.

Also, fans that want to get in on the action online can to enter to win a $109 gift card via Ivar’s Great Caper Contest on Facebook.

Ivar’s is located at 24016 Bothell Everett Hwy.