You’ve finally convinced your girlfriends to take a girls’ only trip. What could be better than hitting the road with your besties, laughing yourselves silly and making unforgettable memories? It’s a fabulous idea — except for the figuring out where to go and what to do part. You love to lie on the beach and soak up the sun. One friend loves to shop until she drops, while another friend is a culture vulture who is happiest when traipsing around a museum. You all love to eat, though, and none of you will ever turn down time at the spa.…