An NPS ranger leads this sightseeing cruise that highlights the history of St. Louis and the role the Mississippi River plays today. Call 877-982-1410 for availability. $20/adults; $10 kids ages 3-15; free for kids under 3. Save up to $3 with the Captain’s Combo (sightseeing cruise and Journey to the Top tram ride). Go to www.GatewayArch.com for tickets.