long walk?

When can/did you start taking long walks? I'll be a week pp tomorrow. And next week on Wednesday my friend has the day off and I'd like to go to the zoo because they have a new exibit and just to get out and do something. It's a small zoo like walking and stopping to see everything it maybe takes an hour overall. I didn't have any complications with my delivery, it went pretty quick actually and I had only a very small prenial tear. After day 4, I felt perfectly fine with getting around not being sore or anything. But I don't want to over do it. So would it be okay to go then or should I wait a couple weeks?