This pristine region of freshwater and saltwater swamps, edged with limestone cliffs, offers a refuge to this gentle creature as well as to birds and land crabs.
The pristine region of freshwater and saltwater swamps are home to various wildlife. 
mnli hypothesis: The pristine region of freshwater and saltwater swamps are home to various wildlife.  premise: This pristine region of freshwater and saltwater swamps, edged with limestone cliffs, offers a refuge to this gentle creature as well as to birds and land crabs.