When can I get back to normal life after giving birth?

I had my son 2 weeks ago tomorrow. I know I have to wait 6 weeks to have and to do any strenuous activities. Buuut, my question is...I want to start walking to try to start getting back into shape. Is it safe to start doing that now? And also...We have year round pes to Universal Studios (we live in central florida) and haven't been able to use them since I got pregnant! They are about to expire, and we really want to get some use out of them before they do. Is it safe to ride some rides?? I called my doctor to ask him, but his office is closed on Fridays. I am leaving town this weekend to visit family down in Miami, but am worried about walking too much if it isn't safe.