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    • Stay safe while hiking in the heat by following this advice from experts

    You should carry plenty of water when hiking no matter the season, but especially during hot weather. (FG Trade/E+/Getty Images via CNN Newsource) You should carry plenty of water when hiking no matter the season, but especially during hot weather. (FG Trade/E+/Getty Images via CNN Newsource)
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    With summer officially here, many people are excited to go hiking along their favourite local trails or tackle an out-of-town bucket-list hike. But before you grab your backpack and race out the door, hiking and safety officials urge caution.

    Temperatures are already soaring in many parts of the nation and around the world, and high heat has the potential to make any hike risky 鈥 and even deadly.

    Earlier in June, a young couple was rescued on a hiking trail in the California desert after running out of water and becoming dehydrated. The boyfriend was conscious during the rescue, but the girlfriend appeared unconscious, and medical officials referred to her 鈥渟evere condition,鈥 according to .

    Others have not been as fortunate. Last year, a while hiking with two family members in Texas鈥 Big Bend National Park. The temperature was 119 degrees Fahrenheit (48 degrees Celsius). In 2021, a couple, their one-year-old child and their dog all died in California while hiking in Devil鈥檚 Gulch Valley on an extremely hot day. Experts said they likely perished from hyperthermia (an abnormally high body temperature) and dehydration.

    In Phoenix, where are rescued every year 鈥 mostly due to hiking during the hottest part of the day 鈥 the city instituted a program to when the heat reaches excessive levels.

    How to tackle hiking in the heat

    Despite these heat-related dangers, it鈥檚 possible to hit the trails safely when temperatures soar. Here鈥檚 how to do so, according to experts.

    Prepare for a hot hike ahead of time

    Whether it鈥檚 hot or cool, you should be in reasonable shape before tackling any hike. If you鈥檙e planning a hilly, five-mile trek, for example, make sure you鈥檙e able to hike five challenging miles before arriving at the trailhead.

    To prepare for heat, become acclimatized to hot weather. You can do so by taking short, easy hikes in warm weather, progressing up to longer, more difficult hikes in hot weather. If that鈥檚 not possible and you鈥檙e travelling to a hot locale for your hike, schedule the trek several days into the trip when your body will be more accustomed to the weather.

    It鈥檚 also good to know your sweat rate, said Dr. Floris Wardenaar, an assistant professor of nutrition at Arizona State University in Phoenix. Wardenaar, who studies the physiological aspect of hiking, recommended weighing yourself before and after several hikes, then comparing any weight loss with the amount of water you consumed during the hike.

    鈥淏ody mass loss is a good proxy marker of sweat loss,鈥 Wardenaar said. 鈥淵ou shouldn鈥檛 lose more than two per cent of your body weight on a hike.鈥 If you鈥檙e losing more weight than that, you should be drinking more fluids.

    Load up on water and carry a water filter

    Water is essential for any hike, no matter the season 鈥 but it鈥檚 critical in hot weather. Unfortunately, many people underestimate the amount of water they鈥檒l need.

    鈥淎lways hike with a water treatment device, too, and carry electrolytes,鈥 Martinez said. Electrolyte tablets or drinks help replace the salts and minerals lost through sweat, which assists in preventing heat-related ailments such as heatstroke and heat exhaustion.

    鈥淏ring extra water, even if it鈥檚 heavy,鈥 said Teresa Ana Martinez, executive director and co-founder of the Continental Divide Trail Coalition. The Continental Divide Trail stretches 3,100 miles (4,989 kilometres) from Mexico to Canada, including some 800 miles (1,287.5 kilometres) in New Mexico, where there鈥檚 plenty of desert terrain.

    Hike in the morning, preferably on shady trails

    鈥淭he benefit of hiking earlier in the day versus later in the evening is that in the evening, the earth still holds heat from the day,鈥 Wardenaar said. 鈥淚t will radiate from the rocks, too.鈥

    If possible, select a trail that winds through shady woods, along water or even in a cool canyon or cave. This way, should you struggle with the heat, you can find shade and water for cooling off.

    Wear light, loose clothing that covers most of your skin

    A long-sleeve shirt and pants might seem counterintuitive on a hot day, but they鈥檒l prevent sunburn and stop your skin and body from heating up.

    A neck buff and hiking gloves are also a good idea, said Abe Christian, operations manager for the Florida Trail Association. The Florida Trail meanders more than 1,200 miles (1,931 kilometres) through the state, from Big Cypress Swamp on the southern tip of the peninsula to Fort Pickens in the panhandle.

    鈥淭here are plenty of places on the Florida Trail where the sun can beat you to death,鈥 Christian said. 鈥淪o you need to cover your skin as best as possible.鈥

    The buff can also double as a compress should the heat get to you. Just dip it in water and place on your head and neck.

    Take along a sun umbrella, phone 鈥 and a buddy

    Make sure you have a fully charged phone in case you need to call for help. A portable battery is helpful, too. Martinez swears by a sun umbrella, which keeps the sun鈥檚 rays from heating your head. (Look for those with an ultraviolent protection factor, or UPF, label or a seal of recommendation from groups such as the Skin Cancer Foundation.)

    If possible, bring along a friend. Sometimes when you鈥檙e experiencing dehydration, heat exhaustion or heatstroke, you鈥檙e not thinking clearly and don鈥檛 realize you鈥檙e in danger.

    When in doubt, turn around

    鈥淚f you start your hike and think it鈥檚 too hot, it鈥檚 too hot,鈥 Martinez said.

    Just turn around and come back another day, she said. Another tip: Turn around when half of your water is gone, even if you haven鈥檛 reached your goal.

    鈥淵our ego is your worst enemy,鈥 Martinez warned. 鈥淧eople underestimate how quickly things can escalate. You don鈥檛 know when your body will say, 鈥業鈥檝e had enough.鈥欌

    Melanie Radzicki McManus is a freelance writer who specializes in hiking, travel and fitness.

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