We have wanted to explore St Barts (St. Barthelemy) for years but as I am a "seasick sailor", we never got around to taking the ferry. This may be the year we do this! We plan on flying to St. Barts for the day and renting a car. Here are my questions:
1) Can you fly from the French side of St. Martin to St. Barts and if so, what airline services the route? (My research only turned up Dutch-side departures). I'm just looking for options.
2) Any rental car suggestions?
3) For those that have taken the trip, what are your favorite things to do?

Any and all advice is greatly appreciated! We'll be visiting SXM Nov 21-Dec 5th, 2023 and will go for a day trip to St. Bart's sometime around Nov 30th.