Spend time in a public park
Jacksonville has no shortage of city, state, and federal preserves and parks. Public parks have plenty of classes of yoga, martial arts, dance, Tai Chi, you can also ride a bike and do many others activities. In any case, that will allow you to know new people and enjoy an incredible activity while you take care of your health. It can be the beginning of a new hobby while you are in the city. Or you can go back to your old hobbies, for instance, if you like producing music, why not take your laptop and work on your music making software while you enjoy the view of the park.
Treat yourself to a spa day
If you enjoy taking care of yourself, being alone is an excellent opportunity to find spas and beauty salons to get pampered. You can visit the luxurious One Ocean Resort and Spa for a facial or massage and treat yourself to beachside R&R. Try different services like massages, get your nails done, haircuts, and others. That will give you the chance to choose your favorite ones and a way to relax while you enjoy a new city.
Give back to Jax!
The world always needs some help and it may come in many ways. Give back to mother Earth with a beach cleanup or a cleanup at the Timucuan Preserve. Besides helping others, you will also get the opportunity to meet valuable people in the Jax community.