spesmilitis said:
your right . . .gym if for strength, europe is for fun. Although I might sneak in some protien for situations where im too busy having for a bite.
Im starting off at london, then going to paris, ansterdam and spain.
Here's something I picked up on from numerous trips across the pond...
People walk far more in Europe than do their American counterparts (and people wonder why Americans are fat...

). What this means for you is that, especially as a college-aged traveler you will be using your feet to propel you from one place to another almost every minute of every day (when you aren't sleeping, sitting, or eating). If you're like most travelers our age, you'll be eating less and burning more of it off. I didn't step foot into a gym the other month when I spent two weeks in France, Italy, and Greece, but from all of the activity that took place there during daily activities I'd dropped 15-20 lbs. Not only that, but I felt and looked
good.
I'd recommend bringing two Nalgene bottles with your daypack and a good supply of power bars. They're easy to eat, cheap, and convenient. Don't waste your money eating at a restaurant every morning, lunch and dinner - instead find a grocery store or street market nearby and take advantage of it to procure healthy food for 10x less than you'd pay if someone else prepared it for you. Sure, eat out a few times in each of the places you're going, but I'm willing to bet that you're not a gastronomical tourist. If you're interested in random travel advice do a search; I've made a few dozen posts regarding the subject and some might give you additional insights.
The most important thing is to have fun... especially in Amsterdam (stay away from the Bulldog Cafe).