Depending on your energy levels and how much time you want to spend in the National Park you may opt for any of the routes also known as programs. Program A, B and C start from Entrance 1 and program E, F and G start from Entrance 2 which are similar to the routes from entrance 1 just that they run in the opposite direction. You can also opt for the full day hike here which is called program K.
Program A, B, E and F are super easy trails and are programmed in a super straightforward way for those who want to spend only half a day here at the Plitvice Lakes National Park. They cover the top spots at the park such as the stunning waterfall Veliki Slap and the super beautiful Kozjak Lake. The smallest route here is A which is about 3.5kms and it can take anywhere between 2-3 hours to finish. Program B is slightly longer and would take 4 hours to finish this 4km hike. A and B begin from entrance 1 and on completing you can either walk back to the entrance 1 or take a shuttle. Similarly from entrance 2 you have two options of E and F which are super easy and take approximately 3 hours and 4 hours respectively. Here also you can end you hike by walking back to entrance 2 or taking a shuttle back. Program E is a 5km hike whereas program F is a 4.5km hike.
Program C and H are continuations of the smaller trails, they include both the upper lakes and the lower lakes. It’s absolutely worth it to visit both the lower and upper lakes if you have the time. In order to do this you will need to do Program C (from Entrance 1) or Program H (from Entrance 2).