There are plenty of other methods to stay active that don't involve getting hot and sweart and aren't too strenuous. Below are some examples.
Why not make the most of our beaches and try your hand at beachcombing? This activity is low-intensity and gets you to search the shoreline for interesting items. The Beach Stuff UK website has a vast online interactive encyclopaedia to help identify your collections.
Geocaching is "the world's largest treasure hunt". You can download the app to begin exploring your local area and logging your coordinates. Sign up for free on the geocaching website.
What could be more peaceful than grabbing your binoculars, going for a walk and finding a quiet spot to view the local birdlife? There are many locations across the District where you can spot elusive birds, from the banks of the river Arun to our local nature reserves and Wetlands at Arundel (WWT Arundel website).