Brent River Park | Conservation sites | Ealing CouncilNature conservations sites in Ealingconservation, sites, ealing, nature,Where is it? The Brent River Park (BRP) is a curving strip of open space along 7km of the Brent Valley. The river meanders west and then south through Perivale, Greenford and Hanwell. The park covers 400ha of open space, and contains semi-natural areas, https://www.ealing.gov.uk/info/201134/nature_conservation/634/conservation_sites/2