The Soča Valley and surroundings with the Triglav National Park (http://www.tnp.si/national_park/) are an excellent area for hikers; there are a lot of official hiking trails. They go through forests and gorges, through smaller villages, along cultural places like memorials and churches and of course to the many many waterfalls in this area. For more days it is possible to make tracks through the Triglav National Park were are many huts were you can eat, stay and sleep.
Some known trails are the Slovenian hiking trail, the 'Via Alpina', the walk of peace, the old border trail, the European Footpath E7 and the Alpe Adria Trail.
There is also each October the Hiking Festival in the Soča Valley. It is also possible to do guided hiking tours.
In the houses and apartments you can find more information( prospects) about all this trails. Especially near Kuninez is a health trail along the Soca river with healing water places..