Hiking and Trekking often refers to multi-day hiking trips through rural, often rugged territory. Many people who are trekkers engage in longer trips through entire regions of the world. Using trekking as a way of getting from place to place. It can be incorporated with a number of other outdoor sports, such as rock climbing or backpacking.
Therefore trekking is different from other sorts of travel. As travelers move on foot through often-rural areas, trekking gives them an up-close view of incredible scenery. If your trip to Croatia is shorter, then spend at least a day hiking in Croatia. It will be your best day on holiday.