Let's go hiking near Zakopane

I am planning hike from Kuznice to Karb and back https://mapa-turystyczna.pl/route?q=49.2694970,19.9805210;49.2278150,20.0023950;49.2288110,20.0117080;49.2694970,19.9805210#49.26937/19.98035/12 Hike takes 15 km and 6.5 hours Kuznice start point is accessible by public transport