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

Other days

blanket fort

Blanket Fort Day
martini

Martini Day
offer

Offer Day
hoodie

Hoodie Day
hannah

Hannah Day
self care

Self Care Day
bounce

Bounce Day
law

Law Day
cuddle up

Cuddle Up Day
lumpy rug

Lumpy Rug Day