If you want to drink full strength drinks your best bets would be Pure Blonde beer (it's low carb and has a few less calories than normal full strength beer), or vodka with a diet soft drink mixer.
Cutting back the alcohol content also cuts back the calories. So light beers are lower in calories than full strength beers. Or you could have white wine spritzers that mix white wine with soda water. With these options you don't get quite so drunk quite so quickly, which could be a good or bad thing depending on your intentions!Calorie King has a list of alcoholic beverages
. You can click on the link to find out their exact calorie content.
Just be careful not to eat fatty food while you're drinking! Alcohol metabolises differently than other foods or drinks. Your body doesn't store alcohol. So any calories not processed will simply pass out of your system. HOWEVER, the body gives alcohol precedence over other foods when it processes those calories. So if you eat some fish and chips while drinking beer the body will process the beer calories and simply save the fish and chip calories for later. And as we all know stored calories = fat! Since it's very easy for the body to turn fat into fat, any fat you consume while drinking is very likely to end on your thighs. And since alcohol lowers your willpower you are more likely to eat fatty foods while drunk than while sober. Obviously you need to eat before drinking or you are going to absorb the alcohol too quickly and get very ill. Try and eat a healthy low fat meal beforehand. See if there are some healthy options for snacking during your drinking too so you're not tempted by Hungry Jacks or potato chips!
Hope you have a great time!