The Mauna Lani Bay Hotel on the Big Island has a federal grant to care for and study green sea turtles. They receive turtles hatched at Sealife in Honolulu and raise them at the hotel until they reach the age of 2-3 years old. Once they are old enough, large enough, and healthy they will be released into the ocean on July 4th, Turtle Independence day. Once a month they do a physical examination of the turtles, clean the shells, weigh and measure them, and do a dental examination. We actually got to assist in the process by cleaning the shells. A really special experience for us... I think the turtles enjoyed it too.