<p>recycle, I strongly endorse the idea of experiencing an alien culture -- the more different from home the better. It is difficult for an individual traveler, especially a teenager or young adult, to get out there and immerse. Thus it's easier to join up with an organized group.</p>
<p>There are zillions of summer programs available; the problem is too many choices. What I'd suggest is that your son first settle on a country or two. If his international experience has been limited then, again, there will be too many choices as each place will have a lot to recommend itself. So spin the globe, point to an area, then start researching what is available there.</p>
<p>I can recommend the following organization for relatively low cost well run programs that offer a good balance of culture and fun. My son did two of their month long itineraries and met interesting and intelligent fellow students and adults and learned a lot (even about the Asian country where he had lived for 10 years).</p>
<p><a href="http://www.artis-tours.org/%5B/url%5D">http://www.artis-tours.org/</a></p>
<p>He could combine this with an adjunct of language study, adventure travel, or just tourist travel in the area.</p>
<p>Personally I think "traveling solely for traveling" can be enlightening if the traveler slows down and observes what is less obvious. For example, come to Java where I live. Spend a couple of weeks at a hostel or homestay in the heartland. Visit the 9th century Buddhist and Hindu temples while listening to the Islamic call to prayer. Investigate the water sharing systems for rice cultivation. Stop into a 21st century factory making $200 sports shoes. Buy a bunch of bananas at the market and get change that equal 0.0001 US$. Go to an elite resort where a cappucino costs more than the waiter makes in a week, but the architecture is awe inspiring. Trek up to the caldera of a smoldering volcano. Stroll through a village flattened by an earthquake and see homes being built by USAID out of bamboo. Attend an all night village festival and watch the shadow puppets in the flickering torch light. Be mesmerized by the gamelan.</p>
<p>Believe me, you can't experience that and not come to a better understanding of what your professors are talking about in economics, philosophy, religion, geology, political science, history, art, music, you name it.</p>
<p>Good luck and let us know how he does.</p>