The Extremo Sul Ultramarathon presents an unparalleled challenge for endurance runners seeking to push their limits on the world's longest beach. Spanning 226 kilometers from Barra do Chui in Santa Vitória to Cassino in Rio Grande, Brazil’s southernmost region, this race immerses participants in a remote and ever-changing landscape where sand meets sea. Competitors are given up to 52 hours to traverse the vast expanse, navigating through an environment that constantly shifts between desert-like sands and coastal waters. The route is marked by several checkpoints strategically placed along its length, yet it remains largely self-sufficient, requiring runners to rely heavily on their own resources throughout the journey. The race not only tests physical endurance but also mental resilience as participants face unpredictable conditions and must adapt continuously. This unique setting offers more than just a test of strength; it is a place rich with stories of human perseverance and transformation. Each step taken across this endless corridor leads runners through an experience that promises profound personal growth, leaving them forever changed by the journey. Set against the backdrop of Brazil’s southernmost coastline, Extremo Sul Ultramarathon invites those who are ready to embrace the challenge of conquering one of the world's most remarkable natural settings. This race is not just about covering distance; it is a transformative adventure that pushes participants beyond their perceived limits and into new realms of understanding and self-discovery. The landscape, with its shifting sands and coastal vistas, creates an otherworldly atmosphere where runners are forced to confront the power of nature and their own capabilities. As they move through this expansive terrain, each checkpoint serves as a milestone in their journey rather than just a logistical support point. Ultimately, Extremo Sul Ultramarathon offers more than a physical challenge; it is a voyage into personal transformation, an opportunity for runners to redefine what is possible within themselves and the world around them.
Races Offered
Extremo-Sul
Nov 22, 2026
straighten
Distance —
226K
terrain
Type —
Running
timer
137 days remaining
sell
$434.38
Weather History
These values represent the 3-year monthly averages for November in Rio Grande do Sul.
thermostatTemperature
17.1° / 27.5°
wb_sunnyFeels like
16.1° / 27.8°
light_mode
Avg sunshine hours
9h 58m
water_drop
Avg rainfall
4.4 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
13.8 km/h (Gentle breeze)
opacity
Sweat loss rate
High
terrain
Course conditions
Hard and dry surface
sunny
Max UV Index
Low (2.4)
humidity_mid
Humidity
74.1%
wb_twilight
Sunrise
05:31
nightlight
Sunset
19:08
About Rio Grande do Sul
Learn more about the host city, Rio Grande do Sul.
Rio Grande do Sul is the southernmost state in Brazil, bordering Uruguay and Argentina. It is in some sense a unique region that merges clearly identifiable elements of Brazilian culture, the culture of Pampas region which also includes Uruguay and a large portion of Argentina, as well as the culture of German and Italian immigrants.