Last December I spent nine nights at a turtle centre in Kampung Teluk Sena, north of Kuantan. On my first patrol I carried a torch with red plastic over its face. When we found a female turtle on the dry sand, I knelt by the wooden stake behind her and used the torch to read the faint number painted on it. Encik Rosli, the head ranger, assumed I was signalling the fishing boat offshore, while the visitors behind us thought I had taken a photograph. No camera is allowed there after dark, and the visitors walked by moonlight.

Walking back along the shore, I asked Encik Rosli how many of the eggs we had moved would ever return as adults. He did not answer at once. “Of a thousand hatchlings,” he said finally, “perhaps one.” I had seen that figure on a poster in my school library and had copied it into an assignment without pausing over it. Hearing him say it aloud, on the sand where the nest lay, was what finally made me understand how thin a turtle’s chances are.

Encik Rosli keeps a thick record book in the hut. For every nest he writes the date, the tag number of the mother, the width of her tracks and even the direction of the wind. He counts the eggs twice, checks his figures against the previous page, and only then locks the book in a metal cabinet. He never scolds the volunteers for their untidy handwriting; he simply copies their entries again himself. Nothing is left to memory, he told me, because one careless night can spoil a season of readings.

My aunt, who came to fetch me on the fourth day, spent an hour at the hatchery. She remembered the old sand pen the village once built behind the surau, which, she said, did keep the eggs safe from stray dogs and lizards, and which held more nests in one enclosure than the centre does today. What amazed her was something else: every nest here is rebuilt at the depth and warmth of the nest it came from, since temperature decides how many males and females hatch.

The centre has also changed the way the rangers and the villagers deal with one another. Years ago the men who walked the beach at dawn hunted for eggs to sell at the market. Today the centre pays a finder’s fee for every nest reported before sunrise, and that fee is worth more than a basket of eggs ever fetched. The men who once searched hardest for nests are now the first to telephone the hut. Two of them have since been taken on as part-time patrollers, though most simply report what they have seen and go home to sleep.

The night patrol team, four of us on any given night, works to one rule: no reported nest waits until morning. Whatever the beach offers must be settled before the sky turns grey. A clutch laid below the high-water line has to be lifted and reburied. A hatchling that has wandered towards the village lights has to be carried back to the surf. An injured female has to be measured and reported. The task changes; the deadline never does.

Apart from the patrols, the centre now belongs to the village children in a way nobody planned. On Saturday mornings a dozen of them come to weigh hatchlings and mend the fence; they earn nothing, though the centre feeds them well. Three of the older ones are already at college studying marine science, and the school has adopted the hatchery as its science project. A beach that was once a place to gather something has become a place to learn something.

On my last night the tide was low and forty-one hatchlings went down the sand together, small dark commas hurrying towards the noise of the water. Encik Rosli did not watch them go; he was already writing. I understood then that the beach is not saved by the release itself, nor by the fence around the hatchery, but by a hundred ordinary acts repeated night after night — a fisherman’s call, a child’s Saturday morning, a number written correctly in the dark. Whether the one that returns in thirty years finds anything left here depends on the rest of us.