While the most well-known cenotes are large open water pools measuring tens of meters in diameter , such as those at LOCATION@1 , the greatest number of cenotes are smaller sheltered sites and do not necessarily have any surface exposed water .

While the most well-known cenotes are large open water pools measuring tens of metres in diameter , such as those at LOCATION@1 , the greatest number of cenotes are smaller sheltered sites and do not necessarily have any surface exposed water .
