Ben Lecomte is spending his summer swimming in trash – literally. So far, he’s found toothbrushes, laundry baskets, sandbox shovels and beer crates floating out in the open waters of the Pacific Ocean.

The 52-year-old Frenchman is journeying from Hawaii to San Francisco via the Great Pacific Garbage Patch to better understand how plastic is affecting our oceans. He will swim a total of 300 nautical miles, intermittently travelling by sailboat with a crew of 10 the rest of the way.