California, a state renowned for its iconic landmarks and natural beauty, is also home to several destinations that have proven perilous for tourists. Among the most notorious are Death Valley National Park and two sites within Yosemite National Park: Half Dome and Nevada Falls, according to a recent assessment of high-risk locations.

Death Valley National Park, a vast 3.4 million-acre desert, is particularly dangerous due to its extreme heat. A flat tire or a dead battery can quickly escalate into a life-threatening situation, leading to dehydration, exhaustion, and heat stroke. Between 2007 and 2024, the park recorded 68 fatalities, averaging four deaths per year. While environmental factors like hyperthermia account for approximately 20% of these deaths, motor vehicle accidents are the most common cause, making up about 25% of fatalities in recent years.

In Yosemite National Park, the famed Half Dome hike, a 14- to 16-mile round trip, presents significant dangers, especially along the cables used to ascend the peak. Since 1948, at least 15 people have died on or near Half Dome. Park officials advise hikers to avoid the cables during storms or when surfaces are wet, and to be wary of lightning.

Nevada Falls, a 594-foot waterfall within Yosemite, has also claimed multiple lives. In June, a 22-year-old man died after falling at the site. Previous incidents include the 2018 death of an 18-year-old Israeli tourist who fell while attempting a selfie and a 2013 incident where a 19-year-old drowned after swimming above the falls. Warning signs at the falls explicitly state the danger of the powerful currents and slippery rocks, emphasizing that going over the fall is fatal.

Beyond these well-known danger zones, other locations in California also present risks. San Francisco's Ocean Beach is known for its powerful rip currents, frigid temperatures, and large waves, which led to seven deaths in 1998 and eight more between 2014 and 2020. A Bay Area surfer died there in June due to unusually large waves.

Mount Whitney, the highest peak in the contiguous United States, also poses a threat. While the ascent is challenging, the hike back down is often where hikers encounter trouble due to altitude sickness, afternoon storms, freezing temperatures, and exhaustion. The mountain typically sees one to two fatalities annually, with four hikers dying there in 2022. One hiker was found dead in January after attempting to climb the mountain alone while their partner turned back.