budget travel; traveling on the cheap
Traveling with very little money, often involving cheap accommodations, hitchhiking, or frugal choices. Can carry a slightly self-deprecating or adventurous tone.
In my student days, I traveled all over Japan on a shoestring budget.
The trick to budget travel is making use of overnight buses and capsule hotels.
節約旅行 emphasizes saving money by cutting costs, while 貧乏旅行 implies traveling with very limited funds, often with a more adventurous or humble nuance.
バックパッカー旅行 refers to backpacker-style travel, which often overlaps with budget travel but focuses more on the style of carrying a backpack and staying in hostels.
Compound of 貧乏 (びんぼう, 'poverty') and 旅行 (りょこう, 'travel').