Lee Valley Regional Park is a 10000 acre 26 mi 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, 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.
Broxbourne Borough Council is the local authority for the Broxbourne non-metropolitan district of Hertfordshire, England.
 Broxbourne is located in the south-east of Hertfordshire, in the East of England region.
 The Council itself is based in Cheshunt, the largest settlement in the district.
The River Lee Country Park is located in the Lee Valley Park and is managed by the Lee Valley Regional Park Authority.
 Covering 1000 acre acres on either side of the River Lee Navigation between Waltham Abbey and Broxbourne.
 An area of lakes, watercourses, open spaces and three Sites of Special Scientific Interest (SSSI) linked by footpaths and cycle tracks.
Waltham Town Lock (No 11) is a lock on the River Lee Navigation at Waltham Cross, Hertfordshire.
 The lock is located in the River Lee Country Park which is part of the Lee Valley Park.
 The adjoining Showground site now known as the Broxbourne White Water Canoe Centre has been chosen to host the canoeing event in the 2012 Summer Olympics.
The Broxbourne Council election, 1988 was held to elect council members of the Broxbourne Borough Council, the local government authority of the borough of Broxbourne, Hertfordshire, England.
The Broxbourne Council election, 1980 was held to elect council members of the Broxbourne Borough Council, the local government authority of the borough of Broxbourne, Hertfordshire, England.
Lee Valley Leisure Complex is located at Edmonton, London, and is part of the Lee Valley Park.
 It was formerly known as the Picketts Lock Sports Centre.
 It now comprises an 18-hole golf course which borders the River Lee Navigation, camping site, indoor bowls club (housed in the remains of the now-demolished Picketts Lock Sports Centre), multiplex cinema and restaurants.
 A new athletics centre was formally opened on 16 January 2007.
 The complex is owned and managed by the Lee Valley Regional Park Authority (LVRPA).
The Broxbourne Council election, 2012 was held on 3 May 2012 to elect council members of the Broxbourne Borough Council, the local government authority of the borough of Broxbourne, Hertfordshire, England.
Broxbourne Mill is located at the Old Mill and Meadows Site Lee Valley Park, Broxbourne, Hertfordshire.
Broxbourne is a commuter town in the Broxbourne borough of Hertfordshire in the East of England with a population of 13,298 in 2001, increasing to 15,303 at the 2011 Census for the sum of the two Broxbourne Wards.

Question: What is this commuter town in the Broxbourne borough of Hertfordshire in the East of England with increasing population that Lee Valley Park covers?
Answer: Broxbourne