Experience the eerie allure of The Dark Loop Race, set within the historic Bellevue Underground Mine (BUM) from October 31 to November 1, 2026. Starting at 9:00 AM and running until 8:00 AM on race day due to daylight saving time changes, this unique event challenges runners with a 24-hour, 12-hour, 6-hour, or 3-hour duration. Venture into the dimly lit tunnels of BUM, where the coal-rich history whispers through the air. The mine shaft stretches for 250 meters, offering a steady 1% grade that tests your endurance. With an average width of about four meters, the passage is spacious enough to accommodate up to four runners side by side—except near the old mine car section. The race environment maintains a consistent temperature between 0°C and 2°C year-round, ensuring predictable conditions despite the season. As you navigate through the darkness, take breaks at the warming station located just outside the entrance. Here, refreshments will be available to keep your energy levels up throughout the grueling journey. With only one hundred competitors allowed in the tunnel at any time due to its tight spaces, The Dark Loop Race promises a intimate and intense experience. Participants are encouraged to explore more about race logistics on their official website: https://www.sinistersports.ca/thedark Dive into this thrilling nightmarish adventure during Halloween week. Crowsnest Pass celebrates the holiday in grand style; check the event's webpage for town-specific activities, ensuring you're fully immersed in the spirit of All Hallows' Eve. Embrace your inner nocturnal explorer and join us at The Dark—where history meets heart-pounding challenge!
Races Offered
12-hour Category (9:00pm Start)
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Oct 31, 2026
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Distance —
12-hour Category (9:00pm Start)
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terrain
Type —
Running
timer
09:00
sell
$180.00
24-hour Category (9:00am Start)
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Oct 31, 2026
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Distance —
24-hour Category (9:00am Start)
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These values represent the 3-year monthly averages for October in Bellevue.
thermostatTemperature
1.9° / 11.3°
wb_sunnyFeels like
-2.5° / 7.5°
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Avg snowfall
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humidity_mid
Humidity
66.4%
wb_twilight
Sunrise
—
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Sunset
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About Bellevue
Learn more about the host city, Bellevue.
Bellevue is a city in the Puget Sound region of Washington state, just across Lake Washington from Seattle. Bellevue had a population of 150,000 in 2021, making it the largest city on the Eastside of King County.
