From their website:

Sunday, June 15th - Father's Day Block Party
Dads and Grandfathers receive complimentary admission to the park today!
It's a Block Party including a Mobile Lego museum with more than 300 Lego models in a timeline from 1958-2014 to mark the history of the park in Lego fashion. Museum includes the most recent release of the models available based on the new Lego movie. Activities include a Master Builders workshop, Lego party games and a Jr. Master Builders Tournament. Our Imagination Playground building blocks and our Backyard Work-kit will be available for more building fun.

ROLL CALL: anyone else going?