Tunnels near Istanbul
Travelers are voting Dolmabahçe-Bomonti Tunnel and Kağıthane-Piyalepaşa Tunnel as the best tunnels near Istanbul. You can find 2 tunnels in Marmara and 2 tunnels in the country of Turkey. Our members favorite in Marmara is Kağıthane-Piyalepaşa Tunnel and Dolmabahçe-Bomonti Tunnel is the top pick in Turkey. Want more? Check out our map of tunnels near Istanbul.