the Bascote four, with the top two forming a staircase. Six more locks take the canal on to the floor of the Leam (pronounced "Lem") and Avon valleys. At Royal Leamington Spa, the ornamental Jephson Gardens commemorate Dr. Jephson, who lived from 1798 to 1878, who worked hard to establish the medical reputation of the spa, while tourist attractions at Warwick include the fourteenth century Warwick Castle, which is set in grounds laid out by the landscape architect Capability Brown.</ref> The climb out of the Avon Valley begins at the two Cape Locks, where the Cape of Good Hope pub serves a locally brewed ale called Two Locks, on account of the brewery being two locks down from the pub. The route then turns right onto the line of the Warwick and Birmingham Canal, another of the constituent canals that made up the Grand Union Canal. To the left Saltisford Basin is run by a Canal Trust; it once led to the terminus of the Warwick and Birmingham Canal, prior to the construction of the Warwick and Napton Canal. After climbing a few of the 21 Hatton Locks, the view opens up to show the enormous locks climbing the hill in an unbroken line westwards. Although heavy to operate, the locks fill and empty quickly. From Hatton top, there is a ten-mile respite from locks, punctuated by the Shrewley Tunnel, which passes under Shrewley village. The tunnel, which has a towpath and is wide enough to allow two boats to pass each other, emerges near to the village centre. At Kingswood Junction, there is a choice of route. For those intending to go to Gas Street and Birmingham city centre, the narrowbeam Stratford-on-Avon Canal offers more locks and a longer passage, but for boaters going straight round the ring, the main line route is shorter and quicker. The five locks at Knowle raise the canal to its summit. They replaced six narrow locks in 1930, the remains of which can still be seen to one side of the channel, and are the last wide locks before Birmingham. After passing under the M42 motorway, an aqueduct carries the canal over the River Blythe, before it turns to the west near Solihull. The journey through Solihull is in a deep leafy cutting, shielding the boater from urban views. Trees then give way to disused wharves and housing estates. The six Camp Hill