Eco-friendly ships are the aim of all major cruise lines these days as the big brands work to improve their sustainability credentials.
Caribbean cruises are hugely popular with UK holidaymakers eager for sun, sea and sand.
Caribbean cruises and sailings to the USA can be bagged on the cheap.
P&O Cruises reveals the green design and raft of environmentally-friendly innovations for its new ship Arvia which will home port out of Barbados