The best last-minute date ideas on this coast are not the most ambitious ones. They are the ones that combine atmosphere, a walk, and a simple place to sit down or catch sunset without requiring a big production.
Best easy answer: Venice
Venice is one of the easiest date answers because the town already gives you a shape for the evening: waterfront, a walk, dinner, and maybe sunset. It is especially good when you want something pleasant that almost always works.
Best culture-forward answer: Sarasota
Sarasota works when you want a date that feels a little more polished. It can support a market morning, a downtown browse, arts energy, drinks, dinner, or a longer evening without feeling forced.
Best harborfront answer: Punta Gorda
Punta Gorda is good when you want water and walkability without the pressure of a beach plan. It feels calm, grown-up, and easy to recommend.
Best evening-energy answer: Fort Myers River District
Fort Myers works best when you want a little more downtown energy, especially for an evening built around walking, drinks, dinner, music, or event rhythm.