Waltham Common Lock

Lee Valley Regional Park is a 10,000-acre (40 km2) 26 miles (42 km) long linear park, much of it green spaces, running through the northeast of Greater London, Essex and Hertfordshire from the River Thames to Ware, through areas such as Stratford, Clapton, Tottenham, Enfield, Walthamstow, Waltham Abbey, Cheshunt, Broxbourne and Hoddesdon in an area generally known as the Lea Valley. Greater London's largest park, Lee Valley Park is more than four times the size of Richmond Park, extending beyond Greater London's borders into the neighbouring counties of Hertfordshire and Essex. The park follows the course of the River Lea (Lee) along the Lea Valley from Ware in Hertfordshire through Essex and the north east of Greater London, through the Queen Elizabeth Olympic Park to East India Dock Basin on the River Thames. The park is managed by Lee Valley Regional Park Authority and is made up of a diverse mix of countryside areas, urban green spaces, heritage sites, country parks, nature reserves and lakes and riverside trails, as well as leading sports centres covering an area of over 10,000 acres (40 km2). It is crossed by a number of roads and railways. There are several major reservoirs and multiple water courses (rivers and canals) within Lee Valley Park, both to carry the river flow, and also to provide navigable waterways and flood relief channels.

The Lee Flood Relief Channel (FRC) is located in the Lea Valley and flows between Ware, Hertfordshire, and Stratford, east London. Work started on the channel in 1947 following major flooding and it was fully operational by 1976. The channel incorporates existing watercourses, lakes, and new channels. Water from the channel feeds the Lee Valley Reservoir Chain.

The River Lee Country Park is located in the Lee Valley Park and is managed by the Lee Valley Regional Park Authority. Covering 1,000 acres (400 ha) on either side of the River Lee Navigation between Waltham Abbey and Broxbourne, it is an area of lakes, watercourses, open spaces and three Sites of Special Scientific Interest (SSSI) linked by footpaths and cycle tracks. The site straddles the Hertfordshire/Essex boundary.

Cheshunt is a National Rail and London Overground station in Cheshunt, Hertfordshire, England. On the National Rail network it is on the West Anglia Main Line, 14 miles 1 chain (22.6 km) from London Liverpool Street and situated between Waltham Cross and Broxbourne. On the London Overground network it is one of three northern termini of the Lea Valley lines.

Waltham Abbey SSSI is a 34.2-hectare (85-acre) biological Site of Special Scientific Interest which is located within the Waltham Abbey Royal Gunpowder Mills at Waltham Abbey in Essex.

Tesco PLC () is a British multinational groceries and general merchandise retailer headquartered in Welwyn Garden City, England. In 2011 it was the third-largest retailer in the world measured by gross revenues and the ninth-largest in the world measured by revenues. It has shops in Ireland, the United Kingdom, the Czech Republic, Hungary and Slovakia. It is the market leader of groceries in the UK (where it has a market share of around 28.4%).Tesco was founded in 1919 by Jack Cohen as a group of market stalls in Hackney, London. The Tesco name first appeared in 1924, after Cohen purchased a shipment of tea from T. E. Stockwell and combined those three initials with the first two letters of his surname, and the first Tesco shop opened in 1931 in Burnt Oak, Barnet. His business expanded rapidly, and by 1939 he had over 100 Tesco shops across the country.Tesco has expanded globally since the early 1990s, with operations in 11 other countries in the world. The company pulled out of the US in 2013, but as of 2018 continues to see growth elsewhere. Since the 1960s, Tesco has diversified into areas such as the retailing of books, clothing, electronics, furniture, toys, petrol, software, financial services, telecoms and internet services. In the 1990s Tesco repositioned itself from being a downmarket high-volume low-cost retailer, attempting to attract a range of social groups with its low-cost "Tesco Value" range (launched 1993) and premium "Tesco Finest" range. Tesco is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.

The Turnford and Cheshunt Pits is a biological Site of Special Scientific Interest near Cheshunt in Hertfordshire and Essex and covers a total of 428.17 acres (173.28 ha). It is part of the Lee Valley Special Protection Area.

Canoeing at the 2012 Summer Olympics in London were contested in two main disciplines: canoe slalom, from 29 July to 2 August, and canoe sprint, from 6 to 11 August. The slalom competition was held at the Lee Valley White Water Centre and the sprint events were staged at Eton College Rowing Centre, at Dorney Lake, known as Eton Dorney. Around 330 athletes took part in 16 events. The men's 500m sprints were replaced by a 200m race; in addition, the men's C-2 500m was replaced by a women's K-1 200m sprint. This was confirmed at an International Canoe Federation board meeting at Windsor, Berkshire, on 5 December 2009. For the first time, women competed in two individual events in sprint canoeing. Because of the changes, the finals were spread over a three-day period instead of the traditional two days which had been in effect since the 1976 Games. The most successful nation in the slalom was France, with two gold medals in the four events, followed by Great Britain with one gold and one silver. In the sprint, Hungary was the most successful with three gold, two silver and one bronze medal, while Germany topped the medal table overall, with three gold, two silver and three bronze medals.

Lee Valley White Water Centre (previously known as Broxbourne White Water Canoe Centre) is a white-water slalom centre, that was constructed to host the canoe slalom events of the London 2012 Olympic Games. On 9 December 2010, Anne, Princess Royal officially opened the venue which is owned and managed by Lee Valley Regional Park Authority. The £31 million ($50 million US) project to construct the centre finished on schedule and was the first newly constructed Olympic venue to be completed. The Olympic canoe slalom competition was held from 29 July through 2 August. The venue also hosted the 2015 ICF Canoe Slalom World Championships.

The Royal Gunpowder Mills are a former industrial site in Waltham Abbey, England. It was one of three Royal Gunpowder Mills in the United Kingdom (the others being at Ballincollig and Faversham). Waltham Abbey is the only site to have survived virtually intact. The Royal Gunpowder Mills, Waltham Abbey, were in operation for over 300 years. Starting in the mid-1850s the site became involved in the development of revolutionary nitro-based explosives and propellants known as "smokeless powder". The site grew in size, and black powder became less important. Shortly after the Second World War it became solely a Defence Research Establishment – firstly the Explosives Research and Development Establishment, then the Propellants, Explosives and Rocket Motor Establishment Waltham Abbey; and finally the Royal Armament Research and Development Establishment Waltham Abbey. The Mills are an Anchor Point of the European Route of Industrial Heritage, set in 175 acres (0.71 km2) of parkland and containing 21 buildings of major historical importance.

Fishers Green is a settlement in the parish of Waltham Abbey in Essex, England, lying 1 mile (1.6 km) to the north of the main built-up area. It lies on the flood plain of the River Lea.

Cheshunt Lock (No 9) is a lock on the River Lee Navigation at Cheshunt, Hertfordshire.