The man said he has been building Lego trains for years, and improves and expands on the track each time.
"I got myself some more Lego track from last year's train set. So, this one got a bit bigger, by going around the pool this time! I had my mates to help me out in making the train set and filming it, as well," the man wrote. "This took us just under two weeks to set it all up."