IETT's D1 and D2 lines 9 opened for the people of Istanbul who would like to go on their hiking. Trekking lines will only work on weekends.
D1 Polonezköy - Üsküdar / which IETT has put into service for Istanbulites who want to go trekking, which has positive effects on human mental and physical health.Kadıköy and D2 Beşiktaş - Belgrad Forest lines will run on weekends during the summer months. The lines will start on Saturday, June 9, 2018.
Special Line for Nature
D1 numbered Polonezköy - Üsküdar /Kadıköy the route of the line; Kadıköy, Numune Hospital, Doğancılar, Altunizade, Ümraniye, Çakmak Bridge, Şile Road, Çubuklu Houses, Polonezköy Muhtarlık, while Beşiktaş - Belgrad Forests line D2, departing from Beşiktaş Pier, passes through Zincirlikuyu Metrobus, 4. Levent, Maslak, Hacıosman and Atatürk Arboretum. It will reach the Belgrad Forest.