The leatherback is the largest and heaviest, the largest ever found was a little over three meters from head to tail and weighed over 900 kilograms. Leatherbacks are the the reptile world’s deepest-divers, capable of descending to depths deeper than 1,200 meters. They are also the fastest reptiles on record. The 1992 edition of the Guinness Book of World Records has the leatherback turtle listed as having achieved the speed of 9.8 meters per second (35.28 kilometers per hour) in the water.
From “THe Daily Herald” ; Leatherback nests on Simpson Bay Beach
