The Next Loop - Cliff Cave

AUG
22
2026
Loop based trail event at Cliff Cave Park on a marked 3.1-mile (5K) loop with a stocked aid station and varied terrain by the Mississippi River. Distances range from 5K to 50K and athletes may stop after any completed loop.
Sat 22 Aug 2026
50 kilometers 26 miles 13 miles 18 kilometers 15 kilometers 10 kilometers 5 kilometers

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The Next Loop - Cliff Cave

The Next Loop - Cliff Cave takes place at Cliff Cave Park, on the River Bluff Trail overlooking the Mississippi River. The course is a clearly marked 3.1-mile (5K) loop that returns each lap to the same central start/finish area with a fully stocked aid station.

The trail surface is primarily packed dirt with sections of crushed limestone and natural singletrack. Runners encounter roots, short climbs, a few technical sections, rolling hills, and bluff-side overlooks. The route has more elevation than flatter park courses while still allowing runners to complete repeated laps.

The event uses a loop format: athletes start together, complete one 5K loop at a time, and decide whether to continue. Every completed loop is counted and honored, with no forced cutoffs listed.

Location: Cliff Cave Park, 806 Cliff Cave Rd, St Louis, MO 63129.

Distances offered:

  • 5K
  • 10K
  • 15K
  • 1/2 Marathon (13.1M)
  • 18K
  • Marathon (26.2)
  • 50K

The series is described in three participant categories: new runners building distance, experienced runners using multiple laps for training, and those pursuing longer efforts by stacking loops. Visit the organization's website for the most recent information.

50 km
50k
26 mi
Marathon
13 mi
1/2 Marathon
18 km
18k
15 km
15k
10 km
10k
5 km
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