U.S. News Insider Tip: Enhance your trip to the zoo by taking a boat ride to get there. You can get there by a local passenger ferry year-round and from April to October, you can take a steamboat.

Starting their journey in Southern Chile, 53 Darwin frogs endured a 6-hour boat ride, 15-hour drive to Santiago [Chile's capital], and a flight to Heathrow, before being transported to London Zoo.