Dd has been walk over a mile and a half since she was about a year and a half old. She doesnt even take a nap during the day so how she can do all this is beyond me.
Of course each child is differant, but I would think if a child shows interest at least let them try. Maybe take the stroller just in case he gets tired on the way back he has a ride the rest of the way
A lot depends on not only the physical stimulation level but the visual stimulation level. We walk everywhere ... live in a big city ... and the kids like to get out and walk, but the busier the street, the less they want to. And I don't just mean the greater numbers of people, I mean more to look at, too.
And sometimes they think they can do more than they can.
Our dd was a big walker...by the time she was 3 she was able to walk most of an 18 hole golf course. Dh would take her with him and I would have the jogger....just to give her a break if she wanted...she rarely did!
I worked for a Montessori school where very young toddlers were taken on VERY long nature walks.They loved it!
Follow the child....
Walking longer distances with a toddler is a lot of fun, but you need to plan for meandering. You *will* have to stop often to pick flowers, examine cracks in the sidewalk and pick up rocks. I think it's all part of the fun.
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