震災漂流物：Updated at 7:33 PM PDT on Tuesday, Jul 7, 2015 Normally when you think of a beach cleanup, you picture dozens of do-gooders out for Earth Day or something, scouring the beach with sacks extracting every plastic bottle and cigarette butt.

The big find of the day was what appeared to be the bumper off a fishing dock — telephone pole-sized beams holding up some 40 tires. The cleanup crew filled up a truck with the tires — enough to put 10 cars back on the road. While the find was curious, it wasn’t as surprising as the large blue fishing box that washed up on the beach a month back. The blue box with Japanese writing and covered in marine species was believed to be a floating refugee of the 2011 tsunami in Japan.