The Swan The Swan is a Grade II listed traditional thatched roof pub in the village of Grendon Underwood, located between Bicester and Aylesbury off the A41. The pub has been completely refurbished and re-opened in Food Upcoming Events Opening Hours Pub Restaurant MondayTuesdayWednesdayThursdayFridaySaturdaySunday 4 – 10pmClosed4 – 11pm4 – 11pm3 – 11pm12 – 11pm12 – 10pm MondayTuesdayWednesdayThursdayFridaySaturdaySunday ClosedClosed5 – 9pm5 – 9pm5 – 9pm