It was strange that there was an inner tube in the river.
I wonder who had put air into it despite winter.
Since its design was cute, it might be a goods for children.
Actually, I saw some young people swim in the river in January.
Even though it was a relatively warm day for January, I was worried they might catch a cold.
The inner tube was between two blocks.
Although it was likely to flow away easily, I saw it a few days later.
It is probably being placed firmly.
There was a trash along with the inner tube.
The river current might carry things that are floating in the river to this place.
I'm going to see it again next time.
It's worth thinking about the river current.
