Aerial silks, static trapeze, handstands and assorted other circus shenanigans.

Swimming, raquetball, and dancing! (though my son swears he's going to get me on a hike-in zip-line in Korea sometime soon).

Chronic cardio.

Love me some 100 mile bike rides with friends.

Dancing around like crazy while no one is around... I hope.

Dancing...horizontally...naked, in bed with my hubby. Hiking would be my very distant second choice.

Tango Argentino and Flamenco.

Playing football (soccer) with my sons in the garden (backyard). Scratch that: anything with my 2 boys!

Me? Just a few examples are: cooking with music and singing horribly along, breaking into bad dance moves between lifting sets, skipping to coffee, chasing after the dog, chatting up farmers at the greenmarkets, taking the train to a new stop and wandering around. Getting a Zipcar for the day for a random adventure to hell knows where. Organizing books by colour instead of alpha or by author. Attempting to make the bed military style to see if, really, you can bounce a quarter off of it.

Why have a certain activity? Life should be play!

Squash. It's not outside, but you're literally bouncing off the walls.

Monkey bars, climbing trees, playing how high can you jump...more or less being an 8 year old

Sex. ;-) Dancing and hula hooping.

Practicing flips, snowboarding, skateboarding!

Rockin' out to my favourite bands - preferably live but the iPod will do.

It's funny to me that the things I do to be active (walk, hike, bike, cross-country ski, and kayak) aren't the things that I think of as play. I enjoy them, but they aren't playful things in my mind.

For me, playing is lifting myself up on rings or a bar, doing somersaults, or climbing up things (be they abbey ruins or a small butte). Oh, and also, getting down on all fours and playing with my dog.

I don't play nearly enough.

Walking around, playing bocce, shooting pool, dancing to music, exercising my creative muscle.

Sex, Martial Arts practice, Running in the rain, Climbing, Obstacle Courses, Sand Volleyball

Playing with my 5 and 6 year old girls...for hours and hours and hours and hours and hours...

Sex, frisbee, playing with our spazzy new kitten, cooking.. all fun!

I'm with Sara S. I really enjoy walking, reading, knitting, watching sports, etc., but none of that is play.

My play consists of living with 3 toy dogs and 2 lively cats--more than enough hilarity on a typical day. I'm also fortunate to have amusing, light-hearted friends who bear with the challenges of life but still greet the sun with a smile.

i like the swings at the park and playing tag. last night i lost an awesome tickle fight; my sides are totally bruised and my voice is octaves lower from all the screaming.

Bboying (also known to media as breakdancing.) Good combination of balance, strength, a smidgen of glycogen depletion, and feeling "dangerous" every once in a while.

Or random monkey outdoor activities.

Soccer, our Team, Spain is the World Champion!!!!

Crossfitting, Mud runs, and just being outside.

As for games, UnReal World!

• Throwing rocks and chunks of metal while wearing kilts!

• Hiking through parks with my wife and son.

• Sprinting with my dogs in an open field, flushing pigeons and chasing them.

• Defying gravity with a barbell.

I always struggle with the play thing -- because I know the idea is that I just delight in some physical sport-like activity. Well, I'm a middle-aged woman, and I do exercise (and am at my perfect weight and look great), and enjoy the occasional gentle hike or bike ride or something like canoeing, and walk my dog a lot and enjoy that .... but play and pleasure for me would be something like exploring a great antique store or book store or new neighborhood, or getting together with a friend, or making jewelry, or something else that doesn't fit the chest-thumping paleo ideal at all. But basically, nothing involving running around or throwing things or whatever is my idea of a good time at all. Hated it when I was a kid, hate it now.

Me? Well, I make theatre, so I play every day. That's pretty great. Some of my work plays (pun intended) with what is "ritual" and what is "play". Besides, who doesn't love art in he streets, or out in big fields?

Cooking is fun. Man sizzle meat on fire. Sound like music. Smell good. Be tasty.

... But playing with my mate is pretty great too. That's my favorite.

PS: If anyone wants a great book on play as an evolutionary/anthropological phenomenon, Homo Ludens is dense and a bit outdated but very good. Free Play would also be one that the paleo people might enjoy.

Play-wrestling with my sweetie! Awesome all-over workout, plus added ab workout from laughing so hard. :)

i lucky, i can load my kyak and drive to the river four miles away. once there i can row fish or shoot wildlife with my camera. i hope i never get burned out on this playtime.

falling off the sides of cliffs.