Two adventurous Harlem tykes wandered away from their apartment, touching off a frantic three-hour search before they were found only blocks away.

Anas, 4, and his little sister, Rawda, 2, strolled out of 104 W. 137th St. at 6:40 p.m. and were later found by a good Samaritan, Syn Chana, at 136th Street and Lenox Avenue.

“They didn’t have any jackets, and I didn’t see any parents with them, so I figured they must have lived close,” said Chana.

She and another adult took the kids, whose last names were withheld, to a local mosque where somebody recognized them and directed Chana to their home.