Illinois Beach Resort Zion, IL Every year in late February or early March, our congregation holds a church retreat at Illinois Beach Resort in Zion, Illinois. What could be better after a long winter? Come "retreat" with us! This is a great opportunity to get to know other members of the congregation. If you are new to Trinity, we would love to have you come so we can get to know each other better! You will enjoy the company, the facility, and the surroundings! And you will have opportunity to hear, think, and talk about things that matter in our faith journey.