Réponse :
The children visited a museum
The children went to the city centre
They had fun in an amusement park
They went to the seaside/beach
They saw the countryside
They saw a (beautiful,[...]) lake
They went to a river
They saw a mountain
(Possibilité de lier, vu que c'est le voc de la nature)
"They went to a river, near the mountain"
It was fun/wonderful/exciting/amazing/boring
