Hertford Carnival A great day out for all the family. Hertford Carnival will be taking place on 19th June. Isabel Hospice is a beneficiary of the day. Stalls and entertainment will be taking place in the Castle grounds between midday and 5pm with various other events around the town. See Hertford Carnival for full details, including how to get involved as a stall holder or volunteer, and just prior to the day, the full listingof events and particpants. You can follow the Carnival news on twitter @HertCarnival.