How to pack for volcano hiking in Central America

Focus on high-quality, moisture-wicking layers and sturdy broken-in boots, as temperatures fluctuate from sweltering heat at the base to freezing winds at the summit. You must prioritize gear that minimizes weight while protecting you from volcanic scree and sulfurous air.

1. Select the right footwear. Bring mid-cut hiking boots with aggressive tread. The volcanic 'scree' (loose rock) on peaks like Acatenango or Pacaya is essentially gravel; low-top shoes will constantly fill with debris, and flat soles will cause you to slide backward.
2. Layer for extreme temperature shifts. Start with a synthetic base layer, add a mid-weight fleece, and carry a high-quality down or synthetic puffy jacket. You will sweat on the ascent and freeze during the pre-dawn summit wait.
3. Protect your lungs and eyes. Pack a lightweight neck gaiter or bandana to cover your nose and mouth if the volcano is active or kicking up dust. Sunglasses are mandatory to prevent eye irritation from sulfuric ash.
4. Optimize your pack weight. Aim for a 30-35 liter daypack with a rain cover. Keep your total pack weight under 15 pounds, including 3 liters of water, which is the absolute minimum required for a strenuous hike.

Do I really need trekking poles?

Yes. The loose volcanic ash acts like deep sand; poles save your knees on the steep, unstable descent.

Can I wear jeans for the hike?

Never. Denim is heavy, retains moisture, and restricts movement. Wear synthetic hiking pants that allow for full range of motion.