Monsters of the Deep

Santa Monica, California, United States

Aug, 2026 (TBD)

5k, 10k, Half-marathon

Race Information

Looking for an exciting and unique race to participate in? Look no further than the Monsters of the Deep , a race celebrating National Sea Serpent Day!

Come out and run along the beautiful coast as you take on this one-of-a-kind race. With a course that winds along the shoreline, you'll get the chance to take in breathtaking views of the ocean as you compete against other runners.

👍 Run Pick of the Month: Hoag OC Marathon Running Festival

📍 Costa Mesa - Friday, May 1, 2026 - Sunday, May 3, 2026

💸 SAVE 15% On Your Entry. Use Code RUNGUIDES15

😄 Why We Like This Run
✅ Coastal route with sweeping ocean views
✅ Multiple distances, 5K, Half Marathon, and Full Marathon (walkers welcome)
✅ Net-downhill course ideal for PRs and Boston-qualifying times

Experience the ultimate coastal run at the Hoag OC Marathon Running Festival. This isn't just a race; it’s a scenic tour of Orange County’s most iconic coastal landscapes, designed for runners who crave the salt air and sweeping Pacific horizons.

The signature point-to-point route offers a front-row seat to the best of the California coast. Whether you are tackling the full 26.2 miles or the half marathon, you’ll be treated to sweeping ocean vistas, iconic landmarks and the "Net-Downhill" advantage:

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Race Facts

Race Size: 100 - 500

Elevation: Fast and Flat

Course Type: Road

Boston Qualifier: No

Kids Run: No

Where to Stay

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