I was thinking about what my sister did to her 13year old son last summer which was summer military camp.. She said that its a good place to really train your child proper discipline and value responsibility at the same time.
There's lots of craft activities you can do with your kiddos, especially for these easter.. I've had lots of fun making easter eggs and easter baskets. Here's some fun marbelized eggs:
and easter baskets:
A stroll at the park in the morning is a good idea. You can take them to a museum or have a little camping in the back yard/front yard of your home. If you have a mini-size pool, they can play and swim in the water along with your assistance.