While stunning, waterfalls present several significant disadvantages and hazards for travelers and the environment. Safety Risks: Natural pools at the base often have unpredictable subsurface currents, hydraulic vortices, and deep plunge pools that can trap even strong swimmers. The surrounding rocks are typically covered in algae and moisture, making them extremely slippery and prone to causing fatal falls. Environmental Sensitivity: High foot traffic near waterfalls leads to soil erosion, destruction of rare mosses, and water pollution from litter or sunscreen. Flash Flooding: In tropical or mountainous regions, heavy rain upstream can cause a "wall of water" to surge down the fall without warning, sweeping away anyone in the vicinity. Additionally, falling debris like rocks or tree limbs can pose a constant danger to those standing directly beneath the flow. For these reasons, many 2026 park regulations strictly prohibit swimming or climbing near the cascades to protect both the visitors and the delicate ecosystem.