Krka National Park
The National Park Krka is one of the most visited attractions in the region. It's really a marvel of nature and really a must-see location if you are staying in Trogir. People travel huge distances to visit Krka, but if you are staying in Trogir you have less then 1 hour driving to reach the national park so it's an opportunity not to be missed. The National park is famous for numerous lakes and waterfalls, and it covers about 75 km of canyons, starting from the Dinara mountain and flowing into the Šibenik bay.
To visit the main parts of the Krka river usually takes about 2-3 hours but a lot of people also enjoy spending some time swimming there as well (don't forget to take your swimsuits and towels). Like any famous attraction, the only downside of visiting Krka is the amount of tourists that visit it especially during summer. But regardless, the walking over the wooden pathways across the river is just an amazing experience - you will probably never be so close to such a powerful river. Apart from the natural phenomenon of the area, the National Park also houses the first hydro-power plant in Europe and an Etno Museum.