French owned Dartmouth coach turned back from boarding ferry in Devon . Bus full of tourists had wanted to cross the River Dart in Sovetours . Ferry bosses say coach was too big to be allowed to cross river . Coach driver forced to perform U-turn on slippery narrow slipway .
French owned Sovetours coach turned back from boarding ferry in Devon . Bus full of tourists had wanted to cross the River Dart in Dartmouth . Ferry bosses say coach was too big to be allowed to cross river . Coach driver forced to perform U-turn on slippery narrow slipway .