Annual Church Retreat at Hidden Acres Mennonite Camp. Saturday during the day and overnight and Sunday morning. This retreat is meant to be a pressure-free weekend and is to be enjoyed the way you want. Everyone is welcome during any part of the weekend - from day visitors to spending the night. For those who will be staying over Saturday night, there are many options for accommodations, and associated prices, to choose from. If you have any questions please see or email Rachel Martin or phone 519-998-0380.