Tons of walking with bomb horticulture and art!
You can rent kayaks, canoes, and paddle boats on a number of waterways connected to this park.
Great place to sample lots of local food options - something for everyone, plus plenty of diet-restricted options!
If antiquing is your thing, this article lists lots of shops: https://www.experiencegr.com/articles/post/antique-your-way-through-grand-rapids/