We will be coming down in June and will be staying in Bocas for about a week with 3 other couples. After they leave my wife and I will be heading to David to rent a car and then on to Boca Chica. My wife is afraid that we will be on the old school bus type buses along with the chickens and goats. Are the buses new, modern and without chickens? Any info on the discription would be of big help to help easy her concerns.