This wooded landscape with the ocean in the background is the setting for a group of maritime allegories. In the foreground, a male figure next to some rapids personifies one of the great rivers that exist in Nature, as was the customary representation during the Classical period. Various elements and animals related to water, such as turtles and seashells, are visible beside him. In the background, Neptune, king of the sea, rides a carriage pulled by sea horses and lead by tritons blowing their conch shells. He carries his traditional trident. This completes the symbolic view of all waters, both sweet and salty, from rivers and seas. This painting clearly shows how Ezquerra´s style was influenced by the Venetians, especially in the fluid technique and intense colors, which he learned by studying paintings from that Italian school in the Spanish Royal Collection. The painting belongs to a series of the Four Elements painted for the Buen Retiro palace by various artists. It painted during the first half of the eighteenth century, with the participation of artists such as Antonio Palomino (Allegory of Air, P03186 and Allegory of Fire, P03187) and Nicola Vaccaro (Allegory of Earth, P04963).