Might be too late for warning you- was going to say you take plenty to do with you, a book etc, game for your daughter to play. When I went to my first poultry show outside of an agricultural show, it was held in a village hall. Nothing in the village but a tiny pub (which didn't open until 1pm). Of course you were not allowed in the village hall until judging was finished, and there is only so much a teenage girl and a bunch of men in their 50's and 60's can talk about in the tiny tearoom attached to the village hall!
Beth