The Clifton Rocks Railway was an underground funicular railway in Bristol, England, linking Clifton at the top to Hotwells and Bristol Harbour at the bottom of the Avon Gorge in a tunnel cut through the limestone cliffs. The upper station is close to Brunel's famous Clifton Suspension Bridge and is located adjacent to the former Grand Spa Hotel (now the Avon Gorge Hotel). The lower station was opposite the paddle steamer landing ferries in Hotwells, Hotwells railway station of the Bristol Port Railway and Pier, a terminus of Bristol Tramways and the Rownham ferry enabling connections across the river Avon.