Related Clues:

• See 24 Down
• Make bye-bye
• Hi sign
• Ripple's big brother
• Silent farewell
• Greet from a distance
• Billow
• Offering greeting
• 50-Across sight
• Breaker on the shore
• Subject of a famous Hokusai print
• Thing caught near the shore
• You might catch one near a beach
• Undulate
• Surfing need