11. There are also several fire circles, a butterfly garden, and a natural coral rock " maze ." 12. Coral rocks cover a mote which is located around its circumference and it is dotted with lakes.13. Many farms, original clapboard homes of early settlers, u-pick'em fields and coral rock walls dot the landscape. 14. The buildings in the wildlife reserve are all constructed from coral rock , excavated from nearby sugarcane fields. 15. Diversion : The Venetian Pool, a large free-form pool created in 1923 in an old coral rock quarry. 16. Deep holes are hacked in the coral rock until the groundwater is reached for building a pit latrine. 17. The land had been filled by coral rock from a dredging project initiated by Walter F . Dillingham. 18. But farmers found digging their ponds in the coral rock too difficult and building above-ground ponds too expensive. 19. In areas such as the Florida Keys, where the bottom is soft coral rock , diskpile foundation lighthouses were built. 20. The casuarina did very well and helped in breaking up the coral rock with their carpet like root system.
