So, I have a 4 year old. She's riding a bike with training wheels and normally I would run after her down the street yelling for her to slow down so I could walk near her and keep an eye on her.
Yesterday in a Salvation Army store, I found a pair of white roller skates, just like the kind I used to LIVE in when i was a kid. I cleaned them up, got some new laces and skated with her today as she rode. We laughed and had so much fun...and it was AMAZING exercise. I highly recommend trying skates.*
*I'm sure rollerblades are good too, but I could never get the hang of it even though I ice skate and ski...it's the breaks on the back thing, I think