s1m0n4@wheel @EllenInEdmonton Thank you for all the tips!
I did some research and I am going for shallow water #running. I know it's best to do deep water running where the feet don't touch the ground but the pool I go to has lanes for swimmers only and everyone else is in the second smaller pool 90 - 140 cm.
It's still easy on the joints/tendons even if my feet touch the ground.