J.Y.
Hi, I was out of town, and just read your request. I just went to Dutch Wonderland 2 weekends ago with our 2 daughters (4 & 2), and had a wonderful time! I think DW is a perfect amusement park for families with young children. We went once last summer, and our older daughter bugged us all year to go back. She had a blast, as did my youngest. At 5 & 6, I think your boys will be able to enjoy all of the rides that have height restrictions. The "Duke's Lagoon" waterpark was a favorite spot for my whole family, and there is a "baby/toddler" area with small waterfountains that your baby may enjoy. We did the rides in the morning, ate lunch, then hit the waterpark. Then a few more rides before calling it a day. The park is very shady, which is nice for keeping your kids out of the blazing sun on summer days. I have found it not extremely crowded and little to no wait for most rides, except things like the log flume, etc. A weekday might be best if you're concerned about that. Also, I agree with another post that the food prices are very high. We eat big breakfasts, smuggle in a few snacks in the bottom of diaper bags, and eat a light lunch to keep the cost down. There is also a picnic area just outside the park, and you can get handstamps to go out & return later. My whole family truly enjoyed our 2 visits there. We plan to go back every summer until our kids are older. If you have any specific questions, feel free to ask. I've also emailed them directly (their email address is on the website) with questions a few times, and gotten quick, friendly responses. Have fun!