I had a chance to visit this pavilion. I can't say I'm thrilled, but you can buy some necessary drinks to quench your thirst while waiting for transport. Convenient location of the store.
A stall from the Two Geese.
Cheap juices, water, beer, chips, cereals, pasta and sweets are always available. Tea and coffee are also sold.
The assortment is certainly not like in a store, but there are still a lot of things.