Buy a TRX (suspension trainer). It's really night, and VERY versatile. Also pack a jump rope. Do circuits. Here's a basic circuit that I do:
-10 pullups (or use the TRX if you don't have a pullup bar)
-15 pushups
-squats (no weight)
-Jump rope 60 seconds (or burpees if you don't have a rope)
-bicycle kicks
-10 leg raises
do all of this with no rest in between. At the end of the circuit rest for 1-2 minutes. Repeat circuit until you collapse. If it's too difficult than lower the reps, if it's too easy than add more reps, etc. Add/replace exercises.
If you have a TRX there is so much you can do (I'm still learning about the TRX.. definitely going to buy my own soon)
-10 pullups (or use the TRX if you don't have a pullup bar)
-15 pushups
-squats (no weight)
-Jump rope 60 seconds (or burpees if you don't have a rope)
-bicycle kicks
-10 leg raises
do all of this with no rest in between. At the end of the circuit rest for 1-2 minutes. Repeat circuit until you collapse. If it's too difficult than lower the reps, if it's too easy than add more reps, etc. Add/replace exercises.
If you have a TRX there is so much you can do (I'm still learning about the TRX.. definitely going to buy my own soon)