I'm at the start of my journey. I want to start exercising, but what's the best cardio for bad knees? I know swimming is good, but it's not an option for me at this time.

Thanks!

I had not only an arthritic kneee but tore my ACL and miniscus in that same knee. I am happy to say that I now experience relatively no pain in the knee. I use the ellyptical-very low impact on my knees and the other thing that noone has mentioned on here is that by building the muscles in the legs, it will imporve the knee pain, so get on a strength building program (hip abductor, thigh master, leg lifts, etc. are some of the machines I use at the Y) I have built my leg muscles up to support my knees and now I am snow skiing, roller skating, ice skating, etc. all without surgery to repair any of my issues. Start out slow on the weight machines and slowly build up.