The Water’s Edge Café is part of the London Wetland Centre and so you must pay for admission before you can visit, but once that's done you have the benefit of the whole wetland centre as well as the café!
The café serves a delicious selection of main dishes and sandwiches, soup, cakes, biscuits and snacks plus children's lunch boxes
They offer breakfast rolls every morning with full English breakfast at weekends. Hot food, including a vegetarian option, is served from 12 noon. They also serve hot and cold drinks and wines throughout the day.