Like it or not, your relatives are on the way. Whether they're staying with you, with your grandmother or in a hotel, sometime over the next month, at some point someone is going to say they're bored and they'll be looking for something to do.
If all you do is watch the 24 hour news cycle, they forecast the world is coming to an end until they end the newscast with a feel good story. Turn it off, friends. I did and it's brought me a huge amount of peace.