Zion National Park Holiday Weekend Crowds Expected Posted on May 23, 2017May 23, 2017 by VisitCCBH in Zion | Explore More Memorial Day Weekend tends to be one of Park’s busiest weekends.Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window)Like this:Like Loading...