The story behind it: I visited this area earlier and found, except for some scattered old bricks, no specific relevant brickwork. Inquiries at that time in the Provincial Juvenile Centre did not result. One day, I was searching for information on the internet and stumbled on Chris Baker's Blog, Khun Chang Khun Phaen (1). On one of the pages, the author described his hunt for a specific temple and posted pictures of a temple ruin he found near the Juvenile Centre. I contacted Chris and he forwarded me the coordinates of the site, and indeed, it was the area I visited earlier.
In February 2012 CE, I revisited the place, knowing there should be brickwork. The first half hour, I found nothing again but scattered bricks. I started to hesitate. Was this the location? The place was a small jungle with thorny bushes, low vegetation and stinging red ants. I hit a kind of pond surrounded by very dense scrub. I decided to go deeper. I crawled under some low branches next to the pond, ripped my pants, lost my hat and found myself in a "new area". First, I saw only a large termite mound. Going deeper, I suddenly saw the contours of a five-meter-high mound of collapsed bricks with on top remaining brickwork. Here was Wat Sing Narai. Why didn't I find it earlier? Simply, I was looking adjacent to the old Khlong Ayothya, but the remnants were more east, bordering the old Khlong Maheyong.
Footnotes:
(1) Chris Baker’s Blog on ‘Khun Chang, Khun Phaen’ is not available on the internet anymore, but in book form. Chris Baker and Pasuk Phongpaichit (2010). Tale of Khun Chang Khun Phaen, The: Siam’s Great Folk Epic of Love and War. Silkworm books.