Eventually, they wandered off. A while later, I realized I had not heard from them in some time and started looking to see what they were up to and saw this! They were having a blast. I heard giggling and looked up to see their creation, a “secret” fort. My three kids had created a clubhouse and were having spy meetings and devising plans for hours.
Later that night, these same "bored" children set up a family Olympics, complete with a long jump, ping pong tournament, and racing time trial. My youngest son drew our prizes. See his handiwork below.
I am always amazed at what kids can come up with once they are allowed to get bored and create fun on their own! I think this was one of their best days of summer and we did not leave the house!