Nicaragua 

I was advised that you can gain a pound a day on a cruise. Stepped on a scale and was astounded I had lost over half my body weight. Then I saw it was in kg and not lb. Damn. Figured out I was at break even with my boarding weight- so far so good. Working out every day and taking the stairs must really help because the quantity consumed is substantial and the type of food is high calorie. Nicaragua only included a short jaunt to Lake Nicaragua with its twin volcanoes, left one still active.