The Pool

Overview

The Pool is a lively bend in the Big Thompson where Fern Creek pours in, creating a swirling basin and short rapids. A sturdy footbridge spans the river right at the junction with the Cub Lake Trail, and big boulders make it an easy spot to sit, snack, and watch water rush by. It’s not the park’s flashiest destination, but it’s a crowd-pleaser—especially for families—thanks to low effort and high payoff.

Best Ways to Get There

• Easiest route: From the Fern Lake Trailhead, it’s about 3.3 miles round-trip with roughly 249 feet of gain along a mellow riverside path. You’ll pass Arch Rocks and the ruins of the Old Forest Inn before reaching the bridge and the namesake pool.
• Longer loop: Start at Cub Lake, climb a short but steep, rocky hill to the lake, descend through burn-scar terrain to The Pool, then return on the gentle Fern Lake Trail (about 7 miles, ~866 feet gain). Expect one stout pitch (around 300 feet in 0.4 mile) and sunnier exposure in the burn area.

What You’ll See

• Rushing water, polished boulders, and a classic wooden footbridge over the Big Thompson.
• Arch Rocks and the Old Forest Inn site add some fun geology and history to the day.
• Summer brings wildflowers, butterflies, and broad views across the Moraine Park valley.

Wildlife

Elk, moose, and mule deer use this corridor, and hikers sometimes spot beavers, ducks, and wild turkey near the river. Give wildlife space—about 75 feet from elk and bighorn sheep, and 120 feet from moose and bears—and never feed or approach them.

Fire Scars = Different Scenery

Sections between Cub Lake and The Pool travel through areas affected by the 2012 Fern Lake Fire and the 2020 East Troublesome Fire. The result: wider views but less shade and more wind/sun exposure. Plan hats, sunscreen, and extra water.

Logistics

Parking is limited at both Fern Lake and Cub Lake trailheads and fills very early in peak season. Seasonal shuttles can help, but if you get dropped near Moraine Park you’ll still walk about 0.8 mile on a dirt road to reach the Fern Lake Trailhead. Expect pit toilets at trailheads, no facilities along the trail, and typically no potable water—bring all you need. During the busy season, timed-entry reservations are required for general park access during daytime hours; this area is outside the Bear Lake Road corridor.

Seasonal Notes

• Summer: Flowers, butterflies, and easy river breezes, but hot, sunny stretches in burn areas.
• Fall: Crisp air, thinner crowds at dawn, and potential elk activity in the valleys.
• Winter: Popular and usually packed down—microspikes or snowshoes are often helpful, and mountain weather can change fast.

Is It Worth It?

If you want a low-commitment hike to moving water with a bit of history and kid-friendly rock perches, The Pool delivers. For more variety and a workout, link Cub Lake to The Pool and finish down the Fern Lake Trail for a satisfying loop.