you can do lunges and stair climbing for your legs. no external resistance just your own body weight. if you have someone to hold you by the legs you can do back extensions by lying on your belly with your torso off the bed and lift your back up. you can also just do this lying on the floor then you won't need anyone to hold you. for lats you can lie down on the floor bring your arms up in front of you elbows on the floor and press down trying to lift your torso off the floor. that will work lats. you can also do chair dips they will work your lats a little.
what are some exercises that i can do while traveling without carrying any equipment?