I visited this reserve over a year ago during a long dry spell and there was no visible water in the ponds. As there is not a watercourse flowing through the reserve, the ponds depend on rain and local drainage to fill.
The largest pond had some open water present and colourful flora was abundant in the shallows. Any groundwater often rewards close inspection of many small aquatic plants which add interest to any walk, unless pure exercise is your motivation to keep moving and not 'smell the roses', so to speak.
A compacted gravel path roughly circumnavigates the perimeter. It is level and very suitable for wheelchairs. A path around the largest pond would give a close up look to the wheelchair-bound. In wet weather, the paths around the ponds become a little wet and muddy.