London is one of the world’s most visited cities, and with good reason: it’s home to so many iconic attractions that you can easily fill a vacation checking items off your lifelong bucket list.

Along with river tubing and doing absolutely nada on a beach somewhere, frolicking in a swimming hole ranks high on the list of iconic summer activities.

As I drove away from the pristine shores of Barcelona through a downpour, I figured my trip to Spain had already peaked.