Challenge Israman is a full-distance race in Israel's southern desert, widely considered one of the hardest long-distance courses in the world thanks to its huge climb out of Eilat and exposed desert terrain.
3.8 km Red Sea swim in Eilat's crystal-clear, warm and salty water - typically 21-22°C with excellent visibility over the coral.
180 km brutal desert course climbing from sea level up the Eilat Mountains to around 800 m, with long sustained ascents, big descents and desert wind.
42.2 km desert marathon on rolling roads and the Eilat seafront, run in dry heat with sharp night-time cooling.
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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