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

Other days

cuddle up

Cuddle Up Day
fiancee

Fiancee Day
unicorn

Unicorn Day
first love

First Love Day
ride the wind

Ride The Wind Day
martini

Martini Day
stud

Stud Day
ormille

Ormille Day
tell a fairytale

Tell A Fairytale Day
brow

Brow Day