ROW! Let's turn back time when the Vikings used to cross the Atlantic or to sail east. The hard rowing crew used the rolling method to maneuver their large, silent, swift ships through rivers and into the open waters of the Black Sea. The evolution of the 21st Century version of OWI's Valiant Viking Ship is similar in nature but uses alternative energy principle, solar, to power its way through water. zIt would appear the Valiant Viking Ship is "smiling" as the sun shines providing its rhythmic splashing, as the oars penetrate the water's edge to create movement. You can almost hear the cheers of the Vikings as they standby and watch the alternative energy principle demonstrate its marvel. Upon completion of its journey, one can moor the ship on its docking station (included). No batteries required and 33 plastic parts to assemble.