Skip to content
  • Riverboats at the Gateway Arch Temporarily Suspending Operations: Due to the Mississippi River's expected high water levels leading to street flooding, our St. Louis Riverfront and Skyline Dinner Cruises May 2 -3 have unfortunately been cancelled. Ticketholders will be refunded in full for all canceled cruises. Our call center, 877-982-1410, will reach out to ticket holders as soon as possible.

  • Visiting the Gateway Arch: Enter the monument through the Gateway Arch Visitor Center, which faces Fourth Street and the Old Courthouse. The Gateway Arch legs are exits only. Please allow at least 30 minutes to go through security. Tickets sell out early and often, advance reservations are strongly recommended. Pending availability, additional tickets may be available for same-day purchase beginning at 9am each day through our website, call center, and ticket center at the Gateway Arch. Same-day ticket availability is not guaranteed and sells out early and often.

Loading Events
The Arch in front of a pond
April 28 @ 10:00 am - 12:00 pm
  • This event has passed.

BioBlitz (FREE)

What creatures are thriving at Gateway Arch National Park? Citizen scientists like you can help us figure it out!

Join us on the final day of National Park Week, Sunday, April 28, 2024, from 10 to noon for our first-ever BioBlitz. Use your cell phone and the free app iNaturalist to take pictures of birds, insects, arachnids, and other creatures you see throughout the park. Your data will help the park, St. Louisans, and others know what creatures are where.

Meet at the registration table outside the entrance to the park beginning at 9:30 AM to check in and learn how to get started.

CLICK HERE TO REGISTER

Meet at the registration table outside the entrance to the park beginning at 9:30 AM to check in and learn how to get started. Registration in advance is helpful, but not required.

View Event Website