A lime pit is usually lime - free and lime - bearing. Not long fishThere may be a lime pit, not fish. Or with the water outside
But from the landlord described, 60 meters deep is the limestone mining craters, spring rain flows into a pool, water birds who carry the eggs in this drink recreation, stay in the pool by incubation, microbial growth in the water... The fish fresh enough that as can be imagined!
Generally we say lime pit refers to the left after burning lime kiln