Clifton Gorge was one of our favorite hiking spots in Ohio. We started taking Michael at least once a month starting when he was about 5 months old. He loved to go: it was quiet, peaceful, he actually slept best when strapped to Kelly’s back.
Closer to home, we took daily walks, sometimes multiple walks a day. He rode in the stroller when it was just the two of us. He began to walk to 10 months and from then on he chose whether to walk, ride, or usually a combination of both.
He began to hike on his own at about 2 1/2. These were just short little hikes, but we did include some elevation and scrambling before he turned 4.