Fort Myers is great if you like a mix of chill and sightseeing. I’d start with Fort Myers Beach for the sunset, then check out Sanibel Island for shell collecting (it’s surprisingly addictive). The Edison & Ford Winter Estates are worth a visit if you’re into history and nice gardens, and the downtown River District has some good spots to walk around, eat, and catch live music. If you like nature, Six Mile Cypress Slough Preserve is a peaceful boardwalk walk with wildlife. I enjoyed that a lot more than I expected.