Travel offers the opportunity to see and experience amazing corners of the world. But the exorbitant cost of many eco-adven-tures can put them out of reach. Depending on location, flights and comfort level, vacations within the U.S. alone can cost anywhere from $500 (drivable weekend trip) to more than $1,500 (flight, four to seven days). Add a rental car or side trips and you're well over $2,000. Traveling out of the country will hit your wallet even harder.
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