The village of Islands was part of the Kislyanskaya volost, belonging to the Okunevskaya sloboda. In 1721, a church was opened in the village of Kislyanko. Almost a century and a half later, the residents of Islands decided to seek permission to build their own church.

In the church of the Kislyan village, the icon of St. Nicholas the Wonderworker, which was located in the iconostasis, went missing. The men were offered to go in search of the icon on horseback. They found it in the village of Ostrovskaya, returned it to the church, and placed it back in its original spot. However, the icon disappeared again. A miracle occurred: it was found again in the village of Ostrovskaya. At the site of the discovery, a stone church was laid in 1860, which was consecrated in 1868. From that time, Ostrovskoye became a village.

The church was snow-white with green domes and a roof. Around it was a garden with poplars, birches, lilacs, rowan trees, and honeysuckle. The fence was beautiful: on a brick foundation stood white marble pillars, between which was a wrought iron grille. The church had two altars: in honor of St. Nicholas the Wonderworker and the Holy Martyrs Flora and Lavra.

The church was closed in the 1930s and was used as a warehouse. Over time, the building began to deteriorate, and the icons were taken away. In the late 1940s, lightning struck the cross on the bell tower, and it fell. The church is now in a nearly ruined state.