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Annie's Canyon Trail: A Slot Canyon Surprise

Explore a hidden slot canyon near San Diego with stunning lagoon views; a unique and memorable hiking experience in Cardiff, California.

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Discover a unique hiking experience at Annie's Canyon Trail in Cardiff, CA, where a narrow sandstone slot canyon awaits. This short but rewarding trail offers a glimpse into a world shaped by time and nature, with beautiful views of the San Elijo Lagoon Ecological Reserve.

A brief summary to Annie's Canyon Trail

Local tips

  • Arrive early, especially on weekends and holidays, to avoid crowds, as the trail is popular.
  • Wear good hiking shoes for better grip on the sometimes slippery canyon surfaces.
  • Bring water, especially on warm days, as there is limited shade.
  • Be mindful of the narrow passages; those with claustrophobia may prefer the switchback trail.
  • Leashed dogs are welcome on most of the trail, but not in the slot canyon.
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Getting There

  • Walking

    From the intersection of Lomas Santa Fe Drive and N Rios Ave in Solana Beach, head north on N Rios Ave. Continue to the end of the road where you will find the trailhead for San Elijo Lagoon. Take the entrance on the right, heading east, to begin your adventure. Follow the signs for Annie's Canyon Trail, approximately 0.5 miles away. Parking is free on Rios Avenue, but be respectful of neighborhood driveways and signage.

  • Public Transport

    Take the Coaster train or bus to the Solana Beach Transit Station. From there, walk east along Lomas Santa Fe Drive, then turn right onto N Rios Ave. Continue to the end of N Rios Ave where you will find the trailhead for San Elijo Lagoon. Take the entrance on the right, heading east, to begin your adventure. Follow the signs for Annie's Canyon Trail, approximately 0.5 miles away. A single ride on the Coaster is around $5, while a single bus fare is $2.50.

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Discover more about Annie's Canyon Trail

Annie's Canyon Trail, nestled in Cardiff, California, offers a surprising and delightful hiking experience. This unique trail leads adventurers through a narrow sandstone slot canyon, a geological formation more commonly found in desert landscapes. Millions of years ago, this area was underwater, and the canyon's formation began as a small crack in the earth's surface, steadily eroded by water, creating the deep, narrow, and twisting pathways seen today. Known locally as the "Mushroom Caves," the area was once private property and a site for illicit activities, suffering from vandalism and neglect. In 2015, a generous donation from a local supporter named Annie enabled the San Elijo Lagoon Conservancy to acquire the land, clean up the graffiti, and construct the trail, which officially opened as Annie's Canyon in 2016. The 1.6-mile round trip trail presents an easy to moderate challenge, with the slot canyon section offering a steeper, more strenuous climb. The narrow passages require some scrambling and may not be suitable for those prone to claustrophobia. For an alternative, a switchback trail provides a less challenging route to the top, where panoramic views of the San Elijo Lagoon and the Pacific Ocean await. Today, Annie's Canyon Trail stands as a testament to community effort and environmental preservation, offering visitors a chance to explore a remarkable natural wonder and appreciate the beauty of the San Elijo Lagoon Ecological Reserve.

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