I visited Pera at the end of March, and spent a day and a half exploring the site.

Some tips:

-wear closed toed shoes! So many little pebbles got in my shoes.

-it's much larger than it seems from the outside. Give yourself all day.

-Petra at night isn't super exciting, but it is beautiful

-Bring water!

Here's the post on my website with an interview from Jane Taylor, author of "Petra and the Lost Kingdom of the Nabataeans:"

Discovering the Lost City of Petra