Related Clues:

• National boundaries, sometimes
• Glides (through life)
• Vacationers' destinations
• Lands along the ocean
• Gold/Ivory
• The East and the "Left"
• Props (up)
• Resort spots
• Rests on one's laurels
• Erosion-prone areas
• Riversides
• Supports (with "up")
• Wet edges
• Shorelines
• Seacoasts