The Panama Canal is a mind-boggling feat of human engineering. The canal’s series of mechanized locks, extending almost two miles in length, move some 26 million gallons of water every time a freight ship passes through (up to 40 per day), allowing their safe passage from the Atlantic to the Pacific Ocean. Traveling through the canal on a ship—and being lifted 85 feet above sea level—is a singular experience. While daytime tours of the Panama Canal draw crowds, few travelers get the chance to see the locks dramatically lit at night. All Costa Rica & Panama itineraries with Lindblad Expeditions-National Geographic include this opportunity.