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Itinerary

Durdle Door

Durdle Door is a natural limestone arch on the Jurassic Coast near Lulworth in Dorset, privately owned by the Welds, a family who own 12,000 acres (50 km2) of the Lulworth Estate. The name Durdle is derived from an Old English word ‘thirl’ meaning bore or drill.

The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. Here the rock strata are nearly vertical, and the bands of rock are quite narrow. Originally a band of resistant Portland limestone ran along the shore, the same band which can be seen one mile down the coast forming the narrow entrance to Lulworth Cove. Behind this is a 400-foot (120 m) band of weaker rocks which are easily eroded, and behind this is a stronger and much thicker band of chalk, which forms the Purbeck Hills. The limestone and chalk are much closer together here than at Swanage, 10 miles (16 km) to the east, where the distance between them is over 2 miles (3 km). There are at least three reasons for this. First, the beds are highly inclined here, and more gently angled at Swanage. Secondly, some of the beds have been cut out by faulting at Durdle Door; and thirdly, the area around Durdle Door appears to have been unusually shallow, so a much thinner sequence of sediments was deposited here. At Durdle Bay all except a short stretch of the limestone has been completely eroded away by the sea and the remainder forms a small headland where it has protected the clay behind. At the western end, this band of limestone has been eroded through, creating the natural arch. Some teams at UNESCO have been working on saving both the arch and the beach which resides by it.

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Durdle Door Photos

durdle door arch

7 Day Weather Forecast

Todaycloudy
Expect a temp in the range 4.8℃ to 5.7℃ with wind speed 7.1 m/sec (NE)
Monday, Dec 05cloudy
Expect a temp in the range 4.8℃ to 5.4℃ with wind speed 6.1 m/sec (NE)
Tuesday, Dec 06partlycloudy_night
Expect a temp in the range 5.9℃ to 6.1℃ with wind speed 6.1 m/sec (NE)
Wednesday, Dec 07clearsky_night
Expect a temp in the range 1.5℃ to 2.6℃ with wind speed 4.7 m/sec (NNE)
Thursday, Dec 08clearsky_night
Expect a temp in the range 0.4℃ to 1℃ with wind speed 2.6 m/sec (N)
Friday, Dec 09clearsky_night
Expect a temp in the range 0℃ to 0.5℃ with wind speed 4.8 m/sec (N)
Saturday, Dec 10clearsky_night
Expect a temp in the range 3.6℃ to 4.1℃ with wind speed 4.3 m/sec (WNW)

Lulworth Area weather forecast from Yr, delivered by the Norwegian Meteorological Institute and NRK

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