There is no need to book, everyone is welcome whether you are a churchgoer or not. The emphasis is really on making friends and catching up with people you haven't seen for a while and eating good food.
There is always a choice of 2 homemade soups with bread (1 vegetarian), a pudding and a tea or coffee. A fascinating after-lunch talk of no more than 10 minutes will be delivered by a number of guest speakers on the theme of non-biblical Christians who have made a difference to the world.