Related Clues:

• Surfer's concern
• Tendency
• It rolls in
• An almanac lists its highs and lows
• It ebbs and flows
• Almanac topic
• Lunar effect
• Man from Mars
• Bay of Fundy attractions
• Ebb and others
• Cheer competitor
• Time's fellow traveler
• It has its highs and lows
• Beachcomber's concern
• It turns eventually