Articles

Belgian Ultrarunner Karel Sabbe's Record-Breaking Pacific Crest Trail Run Showcased in New YouTube Documentary

Explore Karel Sabbe's record-breaking Pacific Crest Trail run in a riveting documentary. Jour..

Trail Running: How it Can Help Reduce Stress and Anxiety

Trail running is an effective way to reduce stress, anxiety, and improve physical and mental he..

Trail Running vs. Road Running: Which One Is Right For You?

When it comes to running, there are two primary options to choose from: trail running and road..

Haunted Hills 10K Redwood City

Name: Haunted Hills 10K Redwood City
Start: 2025-10-25
End: 2025-10-25
Location: Redwood City

Redwood City, United States • 25 Oct 2025

Event overview

The Haunted Hills 5K & 10K is a Halloween-themed walking and running event in Redwood City, CA, on October 25, 2025. It is organized as a trick-or-treat style course for adults and families. Participants form teams of 1 to 5 people and move through decorated neighborhoods while locating displays and answering simple multiple-choice questions at checkpoints. Participants are asked to bring a headlamp or flashlight. Refreshments and socializing are available at the finish area.

Course, distances and registration

Location: 939 Valota Rd., Redwood City, CA.

Distances:

5K
10K

The 5K route includes about 20 checkpoints. The 10K route includes about 36 checkpoints. Registration closes on Fri, Oct 24 at 11:59PM PT. Visit the organization's website for the most recent information.

United States California Redwood City

Race information

Registration

10 km

10k

5 km

Visit the organization's website for the most recent information.

Trail runs nearby

Fri - Mon Jun 26-29

The Rock The Loch Half Marathon

Live and virtual options at Lake Chabot feature 5K, 10K, and a half marathon with multiple aid stations, on-course nutrition, race apparel and a woodallion, post-race beverages, and a brewfest atmosphere.

Sunday Jun 28

Woodmonster Trail Race

Oakland

10 mi

A 10-mile trail race in Redwood Regional Park with single-track terrain, a timed 0.8 mile hill climb, age-based handicap starts, limited to 250 runners, and a team competition.

Friday Jul 3

Independence Day Dash 5K - Livermore

Livermore

400 m

5 km

A community Independence Day event at Sycamore Grove Park featuring a flat 5K on mixed paved and dirt trails and a 400 meter kids run for ages 10 and under. T shirts are included with race fees.

Saturday Jul 4

Bay 2 Bankers 10K

Crissy Field East Beach

5 km

10 km

Map based 5K and 10K adventure starting at Ghirardelli Square. Teams of one to five navigate custom maps to tag checkpoints, then gather afterward for snacks and drinks in a rain or shine event.