Mudskipper SoCal – Silverwood, nestled within the serene beauty of Southern California’s Silverwood Lake State Recreation Area, is a premier destination for SwimRun enthusiasts. This dynamic event takes place amidst the stunning San Bernardino Mountains and offers participants an immersive experience in fall’s tranquil lakeside setting. The race features two exciting options: the Swimrun Mini at 8.5 kilometers, designed to introduce newcomers to the sport with its blend of paved paths and rugged trails; and the more challenging Short Course covering a distance of 15 kilometers. The latter course pushes athletes through technical terrain and secret swimming spots within Silverwood Lake that are typically off-limits to the public. Throughout the event, participants alternate between trail running and reservoir swims, all while wearing their gear—running shoes for the water segments and optional wetsuits for added warmth and buoyancy. This unique format not only tests physical endurance but also enhances camaraderie among competitors as they navigate through breathtaking landscapes. Mudskipper Events is committed to promoting SwimRun sports across North America with a strong emphasis on eco-friendly practices, supported by official sponsor Sumarpo Wetsuits. The SoCal Silverwood event welcomes athletes of all skill levels to immerse themselves in the adventure and natural beauty that defines this California setting. The race offers an unparalleled blend of scenic vistas, challenging terrain, and thrilling water crossings, making it a must-attend for SwimRun aficionados looking to explore one of Southern California’s most picturesque locations.
Races Offered
Long Course SwimRun
Oct 11, 2026
straighten
Distance —
15K
terrain
Type —
Running
timer
64 days remaining
sell
$140.23
Short Course SwimRun
Oct 11, 2026
straighten
Distance —
8.5K
terrain
Type —
Running
timer
64 days remaining
sell
$119.71
Weather History
These values represent the 3-year monthly averages for October in California.
thermostatTemperature
0.2° / 12.5°
wb_sunnyFeels like
-3.5° / 8.5°
light_mode
Avg sunshine hours
10h 33m
water_drop
Avg rainfall
0.8 mm
ac_unit
Avg snowfall
0.5 cm
air
Avg wind speed
4.6 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.0)
humidity_mid
Humidity
47.8%
wb_twilight
Sunrise
07:03
nightlight
Sunset
18:16
About California
Learn more about the host city, California.
One of the most diverse states in the Union, California has a culture ranging from the easygoing surf spots on the beaches of Southern California to the glamor of Hollywood, and the counterculture and thriving businesses of the Bay Area. The state, which is on the west coast of the U.S., also varies greatly in natural beauty, from redwood forests on the North Coast to the ski resorts of the rugged Sierra Nevada mountains and the harsh desert of Death Valley. The largest state in the U.S. by population and the third largest by area, California boasts world-famous attractions and sights: Disneyland, the Golden Gate Bridge, the Napa Valley wine country, and the tallest mountain in the contiguous United States, Mount Whitney. Granted statehood in 1850 following the California Gold Rush, it bears the nickname "the Golden State", and the sites of the former goldfields are known as the Gold Country.
