K.B.
Hello!
I would highly recommend going to Great Wolf Lodge!! We took our boys there last May - our oldest was a few days away from turing 4 and our youngest was 2 1/2. We stayed for two nights and we had a great time! Sleeping the first night did not go so well, but that was just because they have only ever slept in their own beds at home. The second night went much better. We also spent one afternoon at Sleeping Bear Dunes - our boys loved that as well - we took their shovels and buckets along and they just played in the sand while my hubby and I enjoyed the beautiful view :) Whatever you decide, have a wonderful spring break!
K. :)