The desert is an extreme environment. Carry enough water, one gallon per person per day, and drink it. Water is available at Visitor Information Center, Diablo East, and Governors Landing. Do not drink untreated water.

Heat Exhaustion

Heat exhaustion occurs when the body loses more fluid than is taken in. Signs of heat exhaustion include nausea, vomiting, fatigue, headaches, pale appearance, stomach cramps, and cool and clammy skin. If a member of your party begins to experience any of these symptoms, stop your activity immediately. In most cases, you can treat heat exhaustion yourself by doing the following:

  • Rest in a cool place. Getting into an air-conditioned building is best, but at the very least, find a shady spot or sit in front of a fan. Rest on your back with your legs elevated higher than your heart level.
  • Drink cool fluids. Stick to water or sports drinks. Don't drink any alcoholic beverages, which can contribute to dehydration.
  • Try cooling measures. If possible, take a cool shower, soak in a cool bath, or put towels soaked in cool water on your skin. If you're outdoors and not near shelter, soaking in a cool pond or stream can help bring your temperature down.
  • Loosen clothing. Remove any unnecessary clothing and make sure your clothes are lightweight and nonbinding.

If you don't begin to feel better within one hour of using these treatment measures, seek prompt medical attention.

Heat Stroke

Heat stroke is an advanced stage of heat exhaustion. It is the body's inability to cool itself. Symptoms include confusion, disorientation, behavioral changes, and seizures. If you believe that a member of your party is suffering from heat stroke, it is imperative to cool them using any available means and obtain immediate medical assistance.


Hypothermia occurs when the body is cooled to dangerous levels. It is responsible for the greatest number of deaths among people engaging in outdoor activities. Possible even in warm weather, hypothermia often occurs without the victim's awareness. It is a hazard on the lake because immersion in water is the quickest way to lose body heat. To prevent hypothermia, avoid cotton clothing (it provides no insulation when wet) and eat high-energy food before you are chilled. The signs of hypothermia include uncontrollable shivering, stumbling and poor coordination, fatigue, and confusion or slurred speech. If you recognize any of these signs, stop what you are doing and immediately replace wet clothing with dry clothing.


Every year, whitetail deer and other wildlife are killed by vehicles on the roads surrounding Amistad, so please drive with caution, especially from sunset to sunrise. Wear safety belts and use child safety seats.

Hiking Safety

Hiking is one of the many recreational activities that is available at Amistad National Recreational Area. There are several designated hiking trails throughout the park. Remember a well-planned hike is a safe hike.

  • Always tell someone where you are going and when you should be back.
  • Take a map.
  • Wear closed-toed shoes and dress in appropriate clothing. Long pants are recommended.
  • Bring drinking water with you.
  • Wear a hat and use sunglasses and sunblock.
  • Cell phone service is usually reliable within the park and can be helpful if needed in an emergency.

Boating Safety

Boating is one of the most popular activities at Amistad. The number of boaters on the lake can vary from just a handful to over 200 when there is a large fishing tournament going on. Remember to follow these safety tips when boating on the reservoir:

  • All boaters must have the required safety equipment onboard their boats.
  • Check the weather forecast to avoid any inclement weather.
  • Lake levels fluctuate. Be aware of submersed debris or other hazards.
  • Always wear a life jacket.

Last updated: August 21, 2020

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10477 Highway 90 West
Del Rio, TX 78840


(830) 775-7491

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