We hide them, while telling the kids to stay in certain room with the door closed.
And then, my kids like to do the egg hunt, SEVERAL times. So that is what we do.
I boil the eggs that morning.
The kids dye them.
Then we hide them.
They stay in a certain room with the door closed. And Grandma makes sure they don't peek.
That works for us.
We have done it that way since they were Toddlers.
Just remember, how MANY eggs you are hiding, and where. So that, you don't end up having rotten eggs somewhere in the house or outside. That the child did not find. So always... do a count of how many eggs you are hiding. Then you know or not, if your kid found them all.
If you boil the eggs the day or night before, just let it cool then put it in the fridge. But keep in mind that to dye them the next day, do it when the eggs are not "sweating" or are wet from getting to room temperature after being taken out of the fridge. Or the dye may not take well. The eggs should be dry, when dyed. Just wipe them down with a cloth.