The Planky Town is a trading town that lies at the mouth of the Greenblood in Dorne, near Lemonwood. It has a harbor that sees trading vessels. The orphans of the Greenblood trade with merchants from across the narrow sea at the Planky Town.
The Red Princes lashed together poleboats and ferries to create the Planky Town as a gathering place. As the Planky Town grew popular with traders from the Free Cities, the Princes of Dorne built a citadel nearby to guard it.
The game of cyvasse was introduced to Westeros by a Volantene trading ship at the Planky Town. It was spread by the orphans traveling the Greenblood, and soon the Dornish court learned to play the game.
A Dance with Dragons