If you have access to a pool - water aerobics is awesome. Swimming in general is great, but I really liked taking water aerobics years ago. I miss it terribly. You get the aerobic, and even strength training, in the water w/o any of the painful impact. There is a gym here that has 2 pools - a regularly heated one and one that is really warm for therapy and arthritis sufferers.
Even before I did water aerobics, I just walked in the pool. I bought water sneakers to do both - I highly recommend them (if they still make them). They helped me immensly, but a lot of my pain is in the feet, so the support was necessary.
I Rock The Cradle Of Love
for exercise. LOL. hah...
i figured i won't leave out no task too small. if one wants to put channel surfing, showering & scaring my cats into the category of "exercize"...well let's do that too. heck, i'll take what i can get.