As cliché as it is, yoga really does go wherever you go. I keep telling my students to do down dog in that pseudo-"hallway" between the bathrooms on planes to keep your body functional and your ankles somewhat recognizable.
Sun Salutations are the easiest tool to keep in your arsenal. You get your spine moving through extension and flexion, there is a balance between using strength and flexibility, and you alternate your awareness between movement and stillness. Here are videos to take you through Sun Salutation A and B (Ashtanga Vinyasa variations.) Typically, beginning a daily practice, one will do both A and B five times each. That will take about 15-20 minutes. Do this first thing in the morning- you're on vacation! No formal schedule! Give yourself those critical 20 minutes!!!!! If you're looking to do more to stave off some of the damage of all those indulgent reunion dinners with family and friends, do more rounds. Heck, do a full mala of 108 if you're feeling ambitious!
Don't worry about sequencing. Don't stress about taking half a day to sleuth out that studio on Groupon. Keep it simple and keep it moving: sun salutations. Just remember, let the breath be the guide. You don't need to send your heart into overdrive if the rest of the body and organs are doing their share of the work digesting and detoxing! Hope you all have the best summers and see you soon!