I am not sure that I have been to the same Conservation Project of the people that have rated the experience 5 stars.
If you are thinking about going, imagine this: dozens of people sitting in an outdoor space for almost 2 hours with little if not any explanation about the project, all waiting for a call from "someone" at the beach to spot a turtle.
Once the call arrives, everyone is "invited" to pay the 1000 LKR before rushing down to the beach looking for the poor turtle. Once spot, all the "rules" (don't speak in a loud voice, do not use other light other than red light, no flash, do not approach the turtle etc) were completely forgotten. People rushing down the beach, trying to get a glimpse of the poor animal, pushing among the crowd (because yes, it is a crowd), loud noises, flashes.
A shame and a complete disappointment.
I left with such a bad taste in my mouth that I wished I hadn't seen the turtles at all.
If this is conservation....good luck!