"She was restless and listening out for me all the time, whining, which is out of character for her," Wong told the Daily Mail.
So, Wong decided to pack up her pooch and travel as a duo. She even chronicles their adventures on the blog, Miss Darcy's Adventures.
As far as the logistics, Miss Darcy has traveled by pretty much every mode of transportation. "I know her ways and by now she's familiar with being in trains, waiting around in stations, boarding procedures for ferries and planes," said Wong. "She is a very calm dog. I am lucky that she is a very good traveler."