Harwell GeoCache Series 

After our recently placed GeoCache Series at Great Western Park, Didcot, we decide to place a few more caches in other parts of Didcot and surrounding villages, in order to honour local heros, and to reflect our rich local history, stories and heritage. We hope you will enjoy these new caches and may also learn something new when you are caching, thank you!

All our placed caches can be viewed at this public bookmark list: https://coord.info/BMFEC4E

Harwell #320 - Welcome to Harwell (Officially Known as Cow Omelet - Well Arh)

Harwell is a vibrant historic village and civil parish located in the Vale of White Horse district of Oxfordshire, England, situated approximately 2 miles west of Didcot. Known for its blend of ancient rural heritage and modern scientific innovation, the village sits adjacent to the internationally renowned Harwell Science and Innovation Campus.

🌿 Historical Highlights

• Ancient Origins: Harwell features in the Domesday Book of 1086 with 56 recorded households and celebrated its official millennium milestone in 1985. 

• Historic Landmarks: The village features a dense Conservation Area showcasing numerous medieval timber-framed houses alongside St Matthew's Church, which dates back to the late 12th century.

• The High Street Fire: In April 1852, a devastating fire swept through the main street, destroying a major portion of the local architecture and reshaping the heart of the village. 

• Scientific Evolution: In 1937, an RAF airfield opened in the parish. Following WWII, it was transformed into the Harwell Laboratory (UKAEA)

🏗️ Modern Community & Infrastructure

• Population & Growth: The traditional village core has a population of roughly 2,800 residents. However, it is experiencing rapid growth due to strategic housing initiatives like the massive Valley Park development, which is integrating thousands of new homes into the boundary shared with Didcot. 

• Local Identity: Harwell is historically famous for its cherry orchards. This agricultural identity is still reflected in local landmarks like the Harwell Village Hall complex, which features event spaces named Orchard Hall and Cherry Hall.

History of Harwell Village

Harwell boasts a rich history spanning over 1,500 years, evolving from a pagan Saxon burial site into a medieval agricultural hub, and finally into a world-leading science centre. 

The deep history of Harwell Village unfolds across five key eras:

1. Anglo-Saxon Beginnings (c. 500–1066)

• Early Settlement: The earliest concrete evidence of inhabitants dates back to around AD 500. A Saxon cemetery discovered on the edge of the Holloway revealed pagan burials complete with personal belongings, weapons, and urns. 

• Royal Charters: Before the Norman conquest, Harwell was documented in Saxon charters dating to 956, 973, and 985. These records establish the village's millennium milestone, which the parish officially celebrated in 1985.

2. Medieval Era & The Domesday Book (1066–1500)

• The Domesday Survey: In the Domesday Book of 1086, Harwell was recorded as divided into three distinct manors. It was a thriving medieval parish boasting 56 households, which was considered quite large for the time. 

• Architectural Heritage: St Matthew's Church was constructed between 1190 and 1325. The village still preserves timber-framed medieval houses from the 13th and 14th centuries. The iconic Lime Tree House stands as one of the oldest residences.

3. The Great Fire & Agricultural Identity (1500–1900)

• The Cherry Orchard Boom: For centuries, Harwell’s primary economy was tied to its famous cherry orchards. At its height, the village supplied vast quantities of cherries across the region, a tradition that strongly defined its local identity until the late 20th century.

• The Great High Street Fire: On April 1852, a catastrophic fire broke out along the High Street. It tore through the heart of the village, destroying a substantial number of historic thatched buildings and forcing a major Victorian reconstruction of the street scene.

• County Borders: Throughout this entire timeline, Harwell was historically a Berkshire village; it was only relocated under the administrative boundaries of Oxfordshire in 1974. 

4. World War II and RAF Harwell (1937–1945)

• The Airfield: In February 1937, RAF Harwell was officially opened as a bomber station.

• Airborne Operations: The airfield played a crucial role in WWII, notably during D-Day (6 June 1944) and Operation Market Garden. Paratroopers from the 6th Airborne Division took off from Harwell’s runways in gliders to secure pivotal positions ahead of the main Normandy landings. 

5. The Atomic Age & The Science Campus (1946–Present)

• Atomic Energy: In January 1946, the RAF airfield was shut down and repurposed to establish the Atomic Energy Research Establishment (AERE), commonly known as the Harwell Laboratory. It quickly became the command centre for the UK's nuclear research program.

• Modern Innovation: Today, this area has transformed into the sprawling Harwell Science and Innovation Campus. It hosts major scientific infrastructure, including the Diamond Light Source synchrotron, the Rutherford Appleton Laboratory, and the European Space Agency.

About this Cache: 

Welcome to another addition to the Cow Omelet Geocache Series! And this is the First Cow Omelet cache ever placed in Oxfordshire!

This quirky series was originally created in Lancashire by the cacher airhorns. Since its inception, the series has spread across the country — popping up in Cambridgeshire, Suffolk, Norfolk, and beyond — thanks to local cachers keeping the fun, pun-filled tradition alive.

More details can be found below or via the Series' Website: https://cowomeletseries.wixsite.com/home

Cow Omelet, or should we say Welcome To a UK-wide Geocaching series with a twist!​

 

The idea is simple, take the name of a village, town, city and scramble the letters into an anagram, you then use that to create the name of a geocache. Your challenge is to find the cache, solve the anagram, and work out where the Cow Omelet will take you next!

 

The name Cow Omelet is itself an anagram of Welcome To and that's exactly what this series is all about:

Welcome to somewhere new.

​

Each cache gives you a chance to explore a new place, crack the anagram and discover the location hiding behind the scrambled letters. From tiny villages to bustling towns, you never quite know where the next Cow Omelet will lead.

​

So grab your GPS, sharpen your anagram solving skills and start caching.

Please bring your own pen, and open & close the cache lid carefully so the cache and log book can survive longer. 

Please also replace exactly as found due to obvious reason, and please be careful with the possible thorns and stinging nettles. Long sleeves, trousers, and gloves are recommended. 

You do not need to cross any fence or enter any private land.

Thank you and enjoy GeoCaching!

FTF: Congratulations to Go catch for their FTF on 21 October 2026.