Without the original, it's hard to tell exactly what she might have corrected. Adjustments I might make to get an image to look like this are:

1. Boost the exposure to get nice whites (with a part of the white on the signs washed out to maximize my gamut).

2. Increase the fill light to reduce shadows.

3. Increase the blacks enough to make the black look black again, and then maybe punch up the fill light a bit more if it doesn't look right yet.

4. Looks like she's blurred the palm leaves with an adjustment brush (or Photoshop)

5. Carefully adjust white balance to draw out the right colours

6. Play with contrast, brightness, and saturation (probably all bumped up, but not necessarily so)

7. She may have reduced the clarity, or some other property that introduces a little local blur throughout.

She also started with what looks like it was a good picture (composition, subject matter, and lighting).

When doing adjustments like this, every picture can be a little bit different, because what you're doing is representing the image using a little more than the available gamut. If you're not careful it will look hokey. But if you do a good job people can love the image.