Oops, it doesn't look like 'harbor gazebo on valentines day' is a national day..

Other days

carpenters

Carpenters Day
boy friend

Boy Friend Day
prescription drug take back

Prescription Drug Take Back Day
tell a fairytale

Tell A Fairytale Day
coffee

Coffee Day
pumpkin

Pumpkin Day
youth

Youth Day
ruby

Ruby Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
chocolate milkshake

Chocolate Milkshake Day