Good morning!! I am about to travel to vieuques with my sister who, live in Puerto Rico., I would like to know if it is really necessary to rent a 4x4 car to visit the beach. She has a big truck and it would be cheaper to take it with us. Can you tell me if this is possible and if we can do without the 4 x 4. We want to visit some of the beaches and the mosquito bay. thanks!!!