‘Hé tān’ (river beach/shoal) refers to a flat, open area of sand, gravel, or pebbles along the edge of a river—typically exposed when water levels are low. The character 河 (hé) means 'river', and 滩 (tān) means 'shoal', 'sandbar', or 'gravelly flat'; together they literally denote the river’s natural shoreline zone where sediment accumulates. Unlike urban riverbanks with concrete embankments, hé tān implies an undeveloped, often seasonal landform shaped by water flow and deposition.

This term is commonly used in geographical descriptions, ecological writing, travel narratives, and rural life contexts. It evokes imagery of open space, natural simplicity, and seasonal change—especially in spring after snowmelt or autumn when rivers recede. While not inherently associated with animals, hé tān often serves as habitat for birds, insects, and small mammals, making it relevant in environmental discussions. It carries neutral-to-poetic register and appears more frequently in descriptive or literary Chinese than in casual speech.