Half Marathon races near Greater Adelaide

Semaphore South defines this run: flat coastal bike/walk paths, the ocean nearby, and that relaxed beach-suburb atmosphere before your legs are fully awake. The Western Coastal Running Festival marks the 11th year of a low-cost, low-key community event by Coastal Fun Runs. Part of the proceeds go to charity, and the event carries a "running with purpose" sentiment without being ostentatious. The course is a loop on paved coastal trails, measured by AIMS, with the start and finish in the center so the aid station is always accessible. Expect "uninterrupted ocean views," "refreshing sea breezes," and many opportunities to observe other runners and walkers on the out-and-back route. It attracts participants ranging from first-timers and casual walkers to experienced marathoners. The unique "WESTERN" themed trophy, chosen by attendees, is a notable quirk.

Located opposite Angus Neill Reserve and incorporating Kingston Park, this is a low-cost coastal path run, not a large-scale road event. The Seacliff Coastal Run maintains simplicity: flat, clearly marked loops, a race bib, a finisher medal, and a portion of the proceeds donated to the Australian Cancer Research Foundation.

Largs Bay and its jetties define the course: Largs Jetty, Grange, Semaphore, Henley, and Brighton, connected by the coastal path. The 2026 Jetty2Jetty Series is a six-part, self-supported marathon series, taking the place of the former Coastal 42 Series. It offers a practical approach instead of a large-scale event. Expect out-and-back laps configured to achieve the marathon distance. This means steady running along the coastal path with recurring views of the same landmarks. The event is open to beginners, families, and experienced runners, with participants managing their own race day: there are no cut-off times, bibs and medals are provided at check-in, and runners "record their own run on Strava or the like" using elapsed time. Completing all six races earns a "Series medal"; a portion of the proceeds supports ACRF in their mission to #endcancer.

Semaphore South Foreshore hosts the start and finish on the coastal bike/walk path opposite South Terrace, with the Esplanade nearby. Seaside Coastal Run offers an "accessible and affordable coastal fun running event" feel, returning for its 11th year. Part proceeds support the Australian Cancer Research Foundation. The course is a "certified AIMS-measured" loop along the coast, designed so you are "never more than approximately 5 km from the aid station." Runners, joggers, and walkers will share the path, contributing to a "yellow-themed community atmosphere." Yellow socks are encouraged, and a trophy is awarded to the best representation of the theme.

Lakewood Park anchors this 27-year holiday tradition, a December race morning where the running is only part of the point. The Reindeer Run combines a chip-timed road race with the Merry Mile and the b.a. Sweetie Dasher Dash, offering serious bibs, young children's excitement, and ample Santa-hat energy in one location. The start is at Lakewood Park, featuring live results, QR codes near the finish, music, food, refreshments, and awards. Children 10 and under have special pricing, the 8-and-under Dasher Dash participants receive a race bib and goody bag, and the holiday elements continue with a Reindeer Run Swag Apparel Item, a Reindeer Run Finisher Medal Ornament, and Searchable Race Photographs with Santa & Dasher.