Panorama taken on a sunny spring day at the south-east shore of Pitsford Reservoir in Northamptonshire, UK.
From Wikipedia (http://en.wikipedia.org/wiki/Pitsford_Water):
Pitsford Water is a reservoir in Northamptonshire, England. The reservoir was built in 1956 to supply the town of Northampton, which is about 6 miles to the south. The water is the third-largest in the United Kingdom, with a surface area of 2.85 square miles.
Operated by Anglian Water, the reservoir is near the village of Pitsford, from which it is named. It is also close to Brixworth village and Brixworth Country Park. The northern half of the reservoir is designated as a nature reserve, but Pitsford Water is also used for sailing, birdwatching and fishing.
NEFs converted with -0.3 exposure compensation in CNX2
Images (except handheld nadir) stitched, blended, and exposure fused in PTGUI 9 Pro
Nadir stitched in PTGUI 9 Pro
EV0 and Exposure fused images blended for exposure in PS CS5
Nadir patched in PS CS5
Curves adjustment to increase contrast in PS CS5
Triipod shadow and lens flare removed in PS CS5