Travel. Travel may not occur because one of the incentives is single, but may be caused by a variety of incentives such as combination to learn and a chance to get healthy at the same time.
The trip may not occur because one motive alone. But may be due to a combination of several incentives like to learn. And a chance to get healthy at the same time.
Trip travel may not happen because the motivation one only single. But may be caused by many, such as integrated motivation to learn and have a chance to get health at the same time.