There's much more to do in Pacific island paradises than just lie on a towel.
It might be staying in an Indian palace or hovering over Victoria Falls in a chopper – some experiences are life-changing.
Teaching English to schoolchildren in India or building a community restaurant in Peru have become part of a fashionable – and expensive – rite of passage for thousands of young people each year.
Not many tourist spots boast of being dark and difficult to get to, but the Namib desert is one of a number of remote "Dark Sky Reserves" drawing in stargazers for a celestial safari.
Daniel Scott encounters more than some of the continent's most unforgettable scenery on this 4WD adventure.