William Curtis Ecological Park is what was there in the late 70's and early 80's, before the deal was done to build. It had several habitats including a pond, and was visited apparently by 100,000 schoolchildren.
William Curtis Ecological Park is the old name for Potters Field Park. It was renamed Potters when it was reopened in the early 1990s following the landscaping paid for by the s.106 money from St Martin's Property Co.
When the landscaping took place, another £250-275k was paid over to Southwark to be ring-fenced to pay for the cost of maintaining the Park. Unfortunately, all attempts by local community groups to get Southwark to produce data on the use of this fund and how it is invested were rebuffed. Hopefully someone will make a little Freedom of Information Act request to Southwark for this information before any 'Trust' is created to take over the park, so the public can see how the money has been spent and are enabled to play a fuller role in the debate over the future of the park.