Staying hydrated on long hikes is essential for maintaining energy, preventing fatigue, and ensuring your overall safety. Start by packing enough water—experts recommend at least half a liter per hour of moderate activity, more in hot or high-altitude conditions. Use a hydration pack or water bottles for easy access while on the move. Plan your route with water sources in mind, such as streams or lakes, and bring a reliable water filtration system or purification tablets to make natural water safe to drink. Snack on foods with high water content, like fruits and vegetables, to supplement your hydration. Avoid sugary or caffeinated drinks, as they can contribute to dehydration. Monitor your body for signs of dehydration, such as dark urine or dizziness, and adjust your water intake accordingly. By planning ahead and staying mindful of your water needs, you can enjoy a safe and successful hike.