Grand Rapids is less than an hour away from the hotel and venue. Stephen and I have been there several times on our dates and there's a lot to choose from! If you're looking for a fun place to eat, we recommend the SpeakEZ Lounge near Downtown Grand Rapids.
Horrocks is an amazing place that has all sorts of plants and fun sections to browse. If you like going to farmer's markets, this might be a place worth checking out for you. Since the wedding will be in the fall, expect to see lots of locally grown apples, pumpkins, plants, and locally made apple cider.