Before giving birth to the next royal heir, Duchess of Cambridge Kate Middleton demonstrated her working-mum potential by plugging for Royal Princess, the latest addition to the fleet of Princess Cruises. The new luxury cruise ship, which can accommodate 3,600 guests, features an impressive top-deck glass-bottomed walkway extending 8.5 metres beyond the edge. Its Chef's Table Lumiere is a new dining approach - diners are surrounded by a curtain of light. After the ship's maiden voyage to Barcelona last month, it will sail to the Mediterranean in the summer before heading to the Eastern Caribbean in the autumn. Fancy an adventure on board?