articleThe Brief "The Conquistador" at Six Flags Over Texas is now permanently closed. The ride has been open at the Arlington theme park for more than 40 years. An iconic ride at Six Flags Over Texas in Arlington has shut down for good. What we know:In a social media post, the theme park announced it is closing "The Conquistador" swinging boat ride after more than 40 years. We will continue to create new signature adventures for generations to come," Six Flags Over Texas said on Instagram.