Oops, it doesn't look like 'parks for public lands day' is a national day..

Other days

buddy

Buddy Day
self appreciation

Self Appreciation Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
bounce

Bounce Day
first love

First Love Day
comfy

Comfy Day
one

One Day
bubble bath

Bubble Bath Day
ruby

Ruby Day
hiv awareness

Hiv Awareness Day