 Aguilar had learnt the Yucatec Maya language and became Cortés' interpreter.From Cozumel, the fleet looped around the north of the Yucatán Peninsula and followed the coast to the Tabasco River, which Cortés renamed as the Grijalva River in honour of the Spanish captain who had discovered it.In Tabasco, Cortés anchored his ships at Potonchán, a Chontal Maya town.