Zagreb Super Saver: Zagreb Walking Tour and Small-Group Plitvice Lakes National Park Day Trip. Discover Zagreb and nearby Plitvice Lakes National Park on this Super Saver, which combines two tours at one discounted price. On one day of your vacation, explore the Croatian capital’s lower and upper towns on a 1.5-hour walking tour. Then, on another day, enjoy a small-group tour of Plitvice Lakes. Wander along winding boardwalks, crossing over turquoise lakes and through pretty forest trails, and soak up postcard-perfect views during electric boat, train and bus rides. Book this Tour and Save 20%! Zagreb Super Saver: Zagreb Walking Tour and Small-Group Plitvice Lakes National Park Day Trip.