If no refrigerator is available then hand fruits, nuts and jerkies are good options (on the latter go with one of the better brands that is just meat and spices)
If you can cool stuff then boiled eggs, cottage cheese, cut-up fruits and veggies (cukes, carrots, celery, broccoli, peppers, pea pods etc) with hummus, Greek yogurt, plenty of seltzer or herbal iced teas and maybe some fruit slices to go in it.
Fruit such as apples, pears, oranges - things that don't need refrigeration.
Nuts - pack them in serving size snap-lock bags or little containers.
Healthier choice protein nut bars
Dried fruit e.g. raisins in little boxes
UHT single serve milk or milk-alternative drinks (check that they aren't loaded with sugar)
If you have refrigeration or a good icebox that can hold a reasonable amount, try freezing drinks (water is good) and using that to help keep some food cool, such as hard boiled eggs, yoghurt and single-serve cheeses. My late hubby and I did that when we went on a brief break. We stayed in motels and used the little freezer box on the fridge to re-freeze the water. When my son started his tertiary life he lived in a room without a fridge for a little while. I have him an icebox and used 2Litre containers of frozen water to keep ham, hard boiled eggs, his milk, cheese, etc. cold. It worked really well for the few days he was away at a time, and then he was back home in the weekends.
Will you have refrigeration? If so, you can bring perishable items like yogurt, cheese, jerky, et cetera. You can do vegetables with hummus or quacamole.
If it's a road trip, you can pack them in a cooler with ice packs til you arrive at your destination. I had a road trip last fall that included a 5 hour drive plus an hour drive to a 5k that morning and my cooler was perfect the whole time. It stayed cool for 12 hours or so.
Things like apples, bananas, and oranges don't require refrigeration. Also check for a local grocery store and you can pick things up if need be,
Hey everyone, How is everyone doing? I have a question I am going on a small 3 day vacation coming this Friday June 21-23. I want to bring healthy portable snacks with me. I would like to know what kind of options I have.