Swimming comes to mind if you like it and have access to a swimming pool. Works your heart and lungs as well as running and jogging without negative impact on your knees and other joints. Water resistance helps to tone and stretch muscles, as well as burn fat/calories. Try crawl stroke using pull-buyo, it will keep your lower body and legs afloat, so you can work upper body as hard as you like. If swimming is not your thing, water aerobics are good too.