The beach can be a wide-open space, providing relaxation and stimulation to residents. Organize several small group beach trips for residents to enjoy the sun, the water, and relax in the outdoors. Smaller groups allows for better social-distancing.
A note on bus transportation: To make the bus social-distance friendly, one seat should be left empty behind and in front of every resident. In addition, residents should be seated in a staggered fashion on each side of the bus. Here is a downloadable resource discussing best-practices for making your bus ride social-distance friendly.