However, the voyage to the ocean bottom is still a challenging experience.

The course is a challenging experience despite its short length.

"I'm confident you'll find the experience both challenging and rewarding."

Bringing up a second child can be a far more challenging experience than you expect.

Starting a new business can be an exciting and challenging experience.

That's what I'm in the theater for: to give people a challenging experience, something to think about when they leave.

For parents who want to share challenging athletic experiences with their children, the options have never been greater.

Learning with cases is a new and challenging experience for many students.

How do you sum up the most challenging experience of your life on one short blog?

Finding a gallon of water turned out to be a challenging experience'.