25,000 foodies are expected to descend on Herbert Park next week as the Big Grill returns to Dublin. The Big Grill has grown into Europe’s largest BBQ event since it first launched 13 years ago. 25,000 foodies are expected to descend on Herbert Park next week as the Big Grill returns to Dublin. The Big Grill has grown into Europe’s largest BBQ event since it first launched 13 years ago. Often referred to as ‘The Professor’ for his technical approach to barbecue, Stone will demonstrate his methods throughout the festival and host daily sessions on the Bastecamp stage.