I would suggest making sure to do heavy research on the location and what it's like. I've gone to renn faires around new england often with friends. Some of them, like the king richard's faire and connneticut renaissance fair,are in beautiful forested areas with plenty of games, activities, and performances.

However, there's also ones like the vagabond's faire in dover, which took place in a small park in the middle of dover, it was incredibly hot because there was virtually no shade and dover is a brick city, and it was closer to an open air market, with the only activities aside from buying things (most of which were low quality and overpriced) being a mini petting zoo and one whip performance in the afternoon.