estuvieron navegando
-they/you were sailing
Pretérito progresivo para el sujeto ellos/ellas/ustedes del verbo navegar.

navegar

Según narran, estuvieron navegando bien durante tres días y tres noches, pero durante la travesía los sorprendió una tormenta.
According to what they said, they were sailing for three days and three nights, but during the voyage they were surprised by a storm.
Estuvieron navegando por alrededor durante una media hora, sacándonos fotos en el agua.
They cruised around for half an hour, taking photographs of us in the water.
Palabra del día
el villancico