Related Clues:

• Canoer's threat
• Canoeing challenge
• River vortex
• Mini-maelstrom
• Swirl around
• Current event
• Rafting hazard
• Hazard to navigation
• Boating hazard
• Cyclone
• Singer Nelson
• Nelson or Mary Baker
• The Christian Science Monitor founder
• Water whirled?
• Type of current