Simplify the following text for a Grade 6 native English-speaking person.
Original: The Sacred Cenote ( , `` sacred well '' ; alternatively known as the `` Well of Sacrifice '' ) refers to a noted cenote at the pre-Columbian Maya archaeological site of Chichen Itza , in the northern YucatÃ n Peninsula .
Simplified: Sacred Cenote ( Well of Sacrifice ) is a well known cenote at the Maya site of Chichen Itza .