Yes,they do,and also seldom worked territory. It is a bit more organized now.
But,it's a big to do at my congregation. It's like a congregation vacation. They go further away and work with a congregation to help them work their territory. They usually rent a cabin or even beach house,depending on where they are going.
My hall usually takes a long weekend to do this or even all week. I have never gone,because I can't bear to be stuck in a house with all those people no matter how nice,not even for a weekend. Plus,I don't even do field service in my own territory anymore.
And,of course,they still do the one day unassinged territory as you mentioned.