I heard that the general rule was 1 minute per week old x 2 - so Cari is about 16 weeks, should get 16 mins twice a day in play and/or walks. However, she's a working cocker and would be bouncing off walks if I gave her that little exercise... I don't walk to run the legs off her either. At the moment she's getting a 20 minute walk at lunch time and two 10 minute walks each days, total about 40mins. It seems to be enough to stretch her legs but nowhere near enough to wear her out.
So how much is enough?