A French man’s attempt to swim across the Pacific Ocean may be over for now, but his campaign to warn the world about the dangers of plastic pollution in the ocean continues.

Benoît "Ben" Lecomte stepped on a beach on Oahu, Hawaii, on Monday, a little more than six months after he first entered the water in Japan in his attempt to swim across the ocean to San Francisco. Bad weather forced Lecomte and a support boat (a yacht called Discoverer, which has researchers and support crew on board) traveling with him to make the stop in the Aloha State.