Cornwall Park has four million visitors a year.
Michael Ayrton, Park Director, is delighted that the café is finally opening especially after the building was extensively damaged by the fire and had to be re-built.
"Visitors to the Park have been asking for something like this, and everyone has really pulled together to make this project something special," Mr Ayrton said.
The Cornwall Park Café is situated between the Flagpole carpark and the band Rotunda on the eastern side of the park which is one of the more popular areas in the Park.