NATIONAL PARK SERVICE · alerts
Toxic cyanobacteria in rivers, streams, and pools
March 15, 2023 · Source: National Park Service
Do not submerge your head in or drink instream water in Zion National Park.
Read the official NPS sourceWhat Travelers Need to Know
Use the official notice to confirm the affected destination, dates and visitor arrangements before finalizing your trip.
This is an archived notice. Confirm its current status on the official conditions page before traveling.
Traveler guidance by State & Nation Staff Writer.