Oops, it doesn't look like 'park hq day' is a national day..

Other days

frozen yogurt

Frozen Yogurt Day
mean girls

Mean Girls Day
prosecco

Prosecco Day
boba

Boba Day
blanket fort

Blanket Fort Day
kale

Kale Day
tell a fairytale

Tell A Fairytale Day
tulip

Tulip Day
boy friend

Boy Friend Day
pick me

Pick Me Day