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

Other days

ask out your crush

Ask Out Your Crush Day
singles

Singles Day
bounce

Bounce Day
nae nae

Nae Nae Day
hot chocolate

Hot Chocolate Day
china

China Day
ruby

Ruby Day
offer

Offer Day
ormille

Ormille Day
boba

Boba Day