Most of the weight you lose during the first part of any diet is going to be water (which sucks because it is gratifying to see the numbers drop like that
: ). Maybe instead of focusing on a weight goal for your trip, go for an outfit that you want to wear (Bahamas = bikini! Yea!) because, even though you'll know, no one is going to see your weight (as you see it on the scale). Cardio is good for fat burning, light weight training is good for tone, and good nutrition is good for everything! Good luck with your goals, and big
on what you've already accomplished!