Oops, it doesn't look like 'park like yosemite for free this coming day' is a national day..

Other days

Chocolate Milkshake Day

Mean Girls Day

African Immigrant And Refugee Hiv And Hep Awareness Day

China Day

Kiss A Brunette Day

Brow Day

Boba Day

Kiss A Ginger Day

Unicorn Day

Appreciate Yaself A Lil Extra Day