We Bare Bears Season 4 Episode 29 The Gym ( Air Date 2019-02-25 ) Genre Family, Comedy, Animation, Kids category. Overview "At the suggestion of a member, the Bears decide to go to Mystique Physique Gym in see if they are "gym material". Grizz takes part in rock wall climbing only to be outdone by a child, Panda takes up virtual biking that goes from calm to terrifying and Ice Bear takes a tai-chi class where he goes up against some intimidating old ladies.".