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

Other days

unicorn

Unicorn Day

girl friend

Girl Friend Day

bounce

Bounce Day

prosecco

Prosecco Day

eat what you want

Eat What You Want Day

hannah

Hannah Day

law

Law Day

Emoji Day

embarrass your best friend

Embarrass Your Best Friend Day

reading

Reading Day