Jones Beach, New York, United States
A genuinely flat, fast course on Long Island's barrier beach — closed parkways, boardwalk running and Atlantic wind.
1.9 km swim in the sheltered bay water behind Jones Beach on Long Island, warm in September.
Flat, fast one-lap 90 km bike on the closed Wantagh and Ocean parkways — no climbing, wind the only variable.
Flat two-lap 21.1 km run on the Jones Beach boardwalk and beachfront paths.
Actual monthly averages from the last 3 years (Open-Meteo). Real race day may vary.
Water temp uses athlete-reported values first, then official race data, then the marine archive (sea swims, measured at the nearest offshore point). Values tagged est. are modelled from recent air temperature for lakes and rivers, where no observational data exists.
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