The Wellington Museum across from the tourist office at Waterloo would be fairly interesting to you as a historian. As a previous response, there are battle maps, arms, the room where Wellington stayed, etc. However, it would be of minimal interest to you children. But, the battlefield, diorama, etc. would be interesting not only to you but also your children. As a previous response indicated, the W bus is across the street from the Wellington Museum to take you to the battlefield and the lion mound. At the top of the lion mound (many steps but fun), you have metal map diagrams for each geographical direction. Inside of the battlefield museum building next to the lion mound, you will find a brilliant 4D reenactment of the battle with hoses and men seeming to come right at you. Outstanding and your kids would like it but some parts might be a little scary for them. You will have to decide on the spot.

Hello, The Museum is open every day except December 25th and January 1st The Museum closes at 1:30 pm on December 24th and 31st.

Would expect in September it may be a little easier to park I was there in January and the new visitor centre was under construction I would imagine parking be ok unless you have the massive mobile homes, plenty parking so you should be ok