Overview
- The temporary ban covers ascents and snow, ice, and mixed routes on all peaks, applying to tour operators and visitors through March 31, 2026.
- Sernanp based the move on Inaigem reports documenting rapid ice loss, new crevasses, ice caves, and forming lakes, alongside increasingly volatile high‑altitude weather.
- Lower‑altitude circuits and permitted lagoon visits, including Churup, Chinancocha, and Llanganuco, remain open during the rainy‑season slowdown for mountaineering.
- Enforcement will rely on park control points staffed by 25 rangers, with administrative sanctions for those who ignore the restriction.
- Tourism groups acknowledge the scientific rationale yet warn of income losses for local guides and businesses and urge a technical working group to design mitigation, as geologists separately flagged Casga as a high‑risk landslide zone.