Thank you. on their website they talk of sporadic opening hours and in my experience they don't stick to advertised hours. From the link... KINGSTON GATE KIOSK
Under the canopy of some large oak trees, Kingston Gate kiosk is nestled in the dappled shade.

Enjoy our specialty coffee, pastries and of course ice cream.  

This is a seasonal kiosk, subject to closure in the colder months. 