Eat-All-You-Can Dinner Buffet Cruise with Prestige Cruise Ship

It was supposed to be a romantic dinner buffet cruise with boyfriend but end up cruising with my good friend.  I am thinking of a way to spend our nth monthsary during his stay here and cruising crossed my mind. But unfortunately we weren’t able to use the voucher I bought since all the dates in September were fully booked. He already left and the voucher is still with me that will expire in November so I have to booked it and bring along my good friend.