Le site des 25 ponts cavalières

Can you rephrase that for me? 
On the heights of the village, for a
walk in the wilderness
and preserved, walk the trails
which lead to the remains of the ancient
Aqueduct of the 25 bridges. Its heavy
stones show the power of this
work which allowed in the 18th century
to supply the village of Roquebrune
in water. You will also be able to
discover the ruins of the old mill
the Maurette dating from the 17th century, which
provided flour to the inhabitants of
Roquebrune.