Protecting London episode five takes a look at safety, security and facilities management on the hundred acre nature reserve, the WWT London Wetland Centre.
Home to thousands of species of birds, bats and amphibians, the centre is popular with families and nature-lovers, attracting 250,000 per year.
For more about safety and facilities management at the WWT London Wetland Centre, see the interview with Grounds Manager, John Arbon on SHP Online.