Within 100 miles I would go to Epcot for a day and Universal for a day. I’d stay in a hotel over there for four nights. I’m not sure which hotel. Maybe the Polynesian at Disney? I’ve always wanted to do that since I saw it my first time at Disney at age 9. The Contemporary also was always fascinating with the monorail going through it. I never have stayed in either because of the cost.
I’d spend at least a couple of hours one or two days at the pool while there.
Also, while staying near Orlando I’d go to downtown Orlando, which I have never done, just to see it, probably have lunch or dinner. Maybe go out dancing.
The other few days I’d just stay at home and see if the symphony or a musical is playing at the performing arts center near me. I’d go to the beach one day. Maybe take a boat ride.
That’s what I would do, because I have done many things here already. If you come to visit the area I would say be sure to stay at the Vinoy in St. Petersburg. While there be sure to go to the small history area on the main floor to read about the hotel and the area.
One morning have breakfast at the airport (first airport to have a scheduled commercial flight in America) then cross the street to go to the Dali museum (be sure to take a tour with a docent).
Pick out a couple of other museums to see in St. Pete depending on your preference.
Go to the theatre for a concert or play while in St. Pete. Everything is within a mile that I have mentioned in St. Pete. There is a trolley to take you around or you can walk.
Take a dolphin boat ride. They come out to play in the wake of the boats. It occurs without provocation, the dolphins seem to enjoy it.
Day at the beach. Eat at Frenchy’s a local little fish restaurant that specializes in grouper and they catch the fish themselves. Well, since you are vegetarian that actually would not be best for you specifically.
If you have a couple days more you can drive to Orlando and see what you want to see there. I recommend Raglands at Downtown Disney one night to see the Irish dancers and like band and good food. If you go to Universal take the boat shuttle to the Portofino hotel early evening and listen to the tenors sing from the balcony in the plaza.
Actually, just north east of Orlando, Winter Park is a wonderful town. Walk along the Main Street to see all the local shops and restaurants. On the north end visit the Morse Museum that had the biggest collection of Tiffany. The chapel alter takes your breath away. I also love sitting in the daffodil terrace area. It’s a fairly small museum, but the pieces are just exquisite.
So many things to do and see. I haven’t named half the museums or other things to do.