well u cannot reach naran due to snow.....
swat and kalam may be reachable agar recent snow na pary .... but in local jeep only.... u can reach behrain in ur own car.........baki nortern area b open ha u can reach gilgit and hunza even but its a long and bad drive on KKH.... its best u visit swat with many options like shangla mallam jabba and kalam.........