Sydney Trail Half Marathon - December

The Sydney Trail Half Marathon Summer Edition is from 5 to 6 December 2026 on a course set against the stunning backdrop of Lake Parramatta. Embark on a thrilling 21km adventure through one of Sydney's central and scenic locales. The single lap course weaves through the lush surroundings of Parramatta Lake Reserve, which has some of the best trails you can find. See also the other Sydney Trail Half Marathon editions: [Night](/event/sydney-trail-half-marathon-night-edition/), [Autumn](/event/sydney-trail-half-marathon-autumn/) & [Winter.](/event/sydney-trail-half-marathon-winter/)