Annual Escape from Alcatraz Triathlon Begins; some transit routes are affected

The 43rd annual Alcatraz Triathlon Breakaway started at 7 a.m. Sunday in San Francisco, closing some streets and impacting transit routes.

Participants swim from Alcatraz to the St. Francis Yacht Club, then bike through the Presidio to the Great Highway through Golden Gate Park and back to the marina, then run to Baker Beach and back to the Marina Green for the finish.

Public transportation routes in Presidio, Outer Richmond and Golden Gate Park are affected. 18 46th Avenue, 29 Sunset, 30 Stockton, 38 Geary and 38R Geary Rapid will have detours, according to the San Francisco Municipal Transportation Agency.

These routes will resume normal operations once the race is clear, the agency said.