R.
Hi ND,
Check out The Rushes (www.therushes.com) near Baileys Harbor in Door County. It's a timeshare place, but you can rent per night as well. I think it's beautiful there-- very kid friendly (I have a 3 year old and we went there when she was two as well). Check out my review on www.tripadvisor.com (in the search field type in: the rushes door county. Click on the four reviews and choose mine called "Another great winter vacation". I've only been there in the wintertime, but I'm sure it's great in the spring. Indoor pool, activities coordinator year 'round. I included pictures in my review so you can get an idea of the accommodation. Good luck.
R.