Oops, it doesn't look like 'Park Via day' is a national day..

Other days

martini

Martini Day
bonang

Bonang Day
special education

Special Education Day
self appreciation

Self Appreciation Day
law

Law Day
ride the wind

Ride The Wind Day
boba

Boba Day
lisp

Lisp Day
bow tie

Bow Tie Day
pumpkin

Pumpkin Day