Visiting next week. Looking for ideas for a solo traveler

I will be in town for a few days early next week. My boyfriend has a work conference which will have him occupied all day and much of the evenings, and I'm tagging along to be someplace warm and pretty, but I will be on my own for most of the trip. I was thinking of visiting some of your parks and nature trails on/near the beach (Spanish River Park, Red Reef Park). I'm fairly active, but wouldn't consider myself an athlete. Are there any spots you'd recommend? Any places I should avoid as a solo female traveler? Any restaurant recommendations? I'm not much one for crowds or "hot spots." I appreciate any insight you're willing to share. Thanks!