Sunday is Father's Day and the summer solstice. But if you plan on hiking, make sure to bring your camera, walking stick and sense of humor.

Oh, maybe leave the young kids at home.
See, there's a good chance you may bump in to someone hiking nude.

Sunday is also the annual, unofficial, Naked Hiking Day.
And although it's a crime to expose yourself outdoors (indecent exposure), more and more people are joining this movement.

"There's no way to explain it until you experience it," said Andrew Williams, 28, a machinist from Warren, Pa., who first hiked naked six or seven years ago. "It's not about being lewd and crude and all that. It's just enjoyment."
via WBBM 780

Not the joy of getting your pee-pee stuck in a thorn bush, the enjoyment of feeling the wind whip through your ass crack. Whoosh!

Naked Hiking enthusiasts feel trekking in the buff gets them closer to nature and their natural animal instincts. And if you're of the same mindset you can join up with others at for a naked group hike at Hiking Naked message board.

PS - Happy Father's Day