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

Other days

hiv awareness

Hiv Awareness Day
stud

Stud Day
singles

Singles Day
bonang

Bonang Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
azonto is acceptable

Azonto Is Acceptable Day
kiss a ginger

Kiss A Ginger Day
china

China Day
ask out your crush

Ask Out Your Crush Day
hoodie

Hoodie Day