kids activities for seasonal camping

It really depends upon how old the kids are. Assuming your husband is going to build a sand box, you children must be very young, (pre-school). If that's the case, the answer is simple: whatever entertains them at home will entertain them when camping too. Actually, the best play toy is another child. If there are other small children at the campground, buddy up to their parents and let the kids play. Kids has a way of entertaining themselves. Let their imaginations develop with sticks and rocks and bugs and worms and tree bark and dirt and string and a bucket and a cooking pot, a lid and a wooded spoon. If they are so board, then their imaginations need activated. Kids are very good at doing that with each other. The kids will either gravitate to their imaginations or they will gravitate to man-made technology. Add tricycles, bicycles, and a wagon outside in the dirt, and your kids should have plenty to keep them busy!