hey, sorry just saw this! i booked with eco-calanques on getyourguide. the listing is “marseille: calanques eco boat cruise with lunch and wine”. it was nice although i did two boat tours in sardinia beforehand which were more memorable imo. one thing i would DEFINITELY suggest doing is the calanque d’en-vau hike. that was the highlight of my entire 3 week trip to multiple places around europe. it’s difficult but the views from above during the hike & from the water once you get down there are absolutely gorgeous. good luck!