Bay to Breakers is an annual footrace in San Francisco on the third Sunday of May. The name reflects the fact that the race starts at the The Embarcadero adjacent to San Francisco Bay and finishes at the Great Highway adjacent to Ocean Beach and its "breaking waves". It is well known for many participants wearing costumes, and a few engaging in public nudity. The event was officially the world's largest footrace from 1986 (with 110,000 participants) until it was surpassed in 2010 by City2Surf in Sydney, Australia.