Iconic 'secret' waterfall now limits access as crowds push park to breaking point

One of California's best-kept secrets now requires advance booking, as surging crowds are forcing officials to cap access to the iconic Burney Falls.

The waterfalls are located in McArthur-Burney Falls Memorial State Park in Shasta County, California, about 60 miles northeast of Redding.

Burney Falls is known for its year-round flow - even in drought conditions - and for water that appears to beautifully pour directly from its volcanic rock cliffs.

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The waterfalls were once called the "Eighth Wonder of the World" by Theodore Roosevelt, according to SFGate.

But that beauty has come at a price, and officials are launching a pilot program beginning May 15 to limit access and ease overcrowding.

The park is now requiring advance booking until Sept. 27, and will only allow 241 vehicles per day while the pilot program is in place.

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Burney Falls was previously shielded from overtourism "due to its rural location in northeastern California and lack of publicity," a May 1 California State Parks statement said.

"For generations of visitors, it had the reputation of a small, family-oriented park and one of California's best-kept secrets," officials said.

"However, over the past decade, and especially with the growth of social media, that secret is now world-famous."

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Annual visitor numbers have roughly doubled since 2015, which pushes the park "beyond a sustainable capacity and creat[es] a host of problems."

Those issues include environmental damage, traffic backups, illegal parking, safety concerns and sanitation issues.

Reservations will be required on Fridays through Sundays, and visitors must book day-use reservations in advance, with limited morning, afternoon and full-day parking slots available for $10 per vehicle.

Same-day reservations will not be permitted, and all visitors, including annual pass holders, are required to reserve ahead.

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"Oversized vehicles, vehicles pulling other types of trailers, buses and recreational vehicles are not allowed in the park during the day-use reservation period," the statement said.

"Tour buses and commercial tour groups are not allowed in the park without a pre-approved permit."

California State Parks said the pilot program is intended to "reduce the impacts of overcrowding."

The program's goals "are to alleviate the strain on the park's resources and infrastructure, and to improve visitor safety during the busiest summer days, when large crowds often overwhelm the park and the surrounding area."

The program also aims to prevent visitors from being turned away as the park frequently reaches capacity on weekends.

Armando Quintero, state parks director, described Burney Falls as "a crown jewel of the California State Park System."

"We want all visitors to have an enjoyable and memorable experience when visiting this one-of-a-kind destination," he said.

"By allowing visitors to make a reservation in advance, we can help keep crowds manageable and not push the park's resources past the breaking point."

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Fox News Digital reached out to California State Parks for additional comment.