If you're doing a full week of repetitive dives, stay closer to the two-thirds calories from carbs and plenty of calories. Two days before This is the day to be sure you have plenty of water in your system and plenty of calories. It's here that some people get into trouble on long airplane trips by ingesting too much alcohol containing beverages. The alcohol acts as a diuretic, directly causing dehydration. Most people do well to eat a little more than usual on this day, sticking to high carbohydrate foods and evenly spaced meals.
Some people prefer to get the extra calories from food while others like sports drinks or milk.
Also, work on getting a few good nights sleep here, because it can be difficult to sleep restfully on a plane trip to the dive site. Avoid bad eating habits you may slip into if you have to travel to the divesite. Eating a little less than usual today will make you a little lighter tomorrow on your dive day, so drop your intake by about 500 calories. One of the worst things you can do is raid the pre-dive pasta bash. At this point, it's too late to make up for poor eating earlier in the week.