seat from Liberal Democrat Brian Cotter (now Lord Cotter) in the 2005 General Election. Geography The mainly flat landscape of Weston is dominated by Worlebury Hill, 109 metres (357 ft), which borders the entire northern edge of the town, and Bleadon Hill, 176 metres (577 ft) which together with the River Axe, and Brean Down at Uphill form its southern border. In the centre of the town is Ellenborough Park a Site of Special Scientific Interest due to the range of plant species found there. The beach of Weston Bay lies on the western edge of the town. The upper part is sandy, but the sea retreats a long way at low tide, exposing large areas of mud flats (hence the colloquial name of Weston-super-Mud). The tidal range in this part of the Bristol Channel is great, and since beach and mud flats are on a gentle slope, it is inadvisable to try to reach the sea at low tide, as the sand gives way to deep mud which has often resulted in loss of life over the years. Driving on the beach is permitted in certain areas, but occasionally the drivers are caught unawares as they drive too close to the sea and break through the sand into the underlying mud, and are then stuck. The tidal rise and fall in the Severn Estuary and Bristol Channel can be as great as , second only to Bay of Fundy in Eastern Canada. This tidal movement contributes to the deposition of natural mud in bays such as Weston. There has been concern about pollution levels from industrial areas in Wales and at the eastern end of the Bristol Channel; however this tends to be diluted by the Atlantic waters. There are measurable levels of chemical pollutants, and little is known about their effects. Of particular concern are the levels of cadmium and to a lesser degree residual pesticides and hydrocarbons. Just to the north of the town is Sand Point which marks the lower limit of the Severn Estuary and the start of the Bristol Channel. It is also the site of the Middle Hope biological and geological Site of Special Scientific Interest. Climate Along with the rest of South West England, Weston has a temperate climate which is generally wetter and milder than the rest of the country. The annual mean temperature is approximately . Seasonal temperature variation is