Mystery Photo 53 was taken in a national park, but not in the United States. Do you know the name of the waterfall and the national parks in which it is located?

To help you with this first international puzzler in our mystery photo series, we’ll tell you three things that it is not:

It is not in one park.
It is not smaller than Niagara Falls.
It is not Victoria Falls.

If you can name this waterfall and both of the national parks in which it is located, you will be eligible for our monthly prize drawing and a chance to win a copy of Andrew Skurka's The Ultimate Hiker's Gear Guide: Tools and Techniques to Hit the Trail.

The answer and a list of readers submitting correct answers will be posted in tomorrow's Traveler.

No cheating!

If we catch you Googling or engaged in other sneakery we will make you write on the whiteboard 100 times:

111,111,111 x 111,111,111 = 12,345,678,987, 654,321