You are browsing the MCS online catalogue. All profits go to support the work of the Marine Conservation Society. Marine Conservation : Adopt-a-Turtle : Olive Ridley Turtle Olive Ridley Turtle Price:  £25.00 Marine Conservation : Adopt-a-Turtle : Olive Ridley Turtle The Marine Conservation Society (MCS) is the only UK charity dedicated to caring for our seas, shores and wonderful marine wildlife.