The Achair Monastery is located upstream of the Irtysh River, 50 kilometers from Omsk. Its history began with the women's community of the Mother of God-Mikhailo-Archangel, which appeared near the Cossack settlement of Achair in the late 1890s. The first abbess was the widow of a court councilor, Marina Alexandrovna Makhalova. In 1903, a stone church was consecrated in the community in honor of Archangel Michael.

The site for the new church was blessed by John of Kronstadt. Soon the community became a women's dormitory monastery. Cossack Mikhail Bubennov donated land for construction, and funds came from the estate of Emperor Alexander III. Local Cossacks participated in the construction, and in 1913, the monastery was blessed by Archbishop Andronicus.

With the arrival of Soviet power, everything changed. In 1920, the abbess, Mother Evpraksia Rozhdestvenskaya, was arrested, and the monastery's property was confiscated. The NKVD was placed on its territory, and by the late 1930s, a Gulag colony No. 8 appeared here. The prisoners, numbering 800-900 people, lived in terrible conditions, many dying from cold and disease. After Stalin's death, the colony was disbanded, destroying all documents and blowing up the buildings.

On the site of the former colony, the restored Achair Women's Monastery now stands. Many nameless sufferers are buried here, and prayers for them have become part of the sisters' ministry. The cross, a symbol of reconciliation, gave the monastery its name, Cross.

The Holy Gates and the bell tower face the Cherlak tract, and nearby is the church of Anastasia the Deliverer. The five-domed church in honor of Dimitri of Thessalonica shines with golden domes and serves as the entrance church of the monastery.

The main church of the monastery, the Assumption Cathedral, is the architectural dominant of the complex. Its nine golden domes are visible from afar, creating an impression of soaring. In the crypt of the cathedral lies the Siberian Golgotha, dedicated to the new martyrs and confessors of Russia.

One of the monastery's treasures is a spring with healing mineral water, consecrated in 1993 by Patriarch Alexy II. Here, the church of John the Baptist has been built. Nearby is the church in honor of the martyrs Faith, Hope, Love, and their mother Sophia, an example of wooden architecture.

The monastery has a hotel, sisterhood buildings, an economic yard, and a refectory. The ancient law of hospitality is observed here, and pilgrims can share a meal with the residents and other visitors.

The monastery is harmoniously integrated into the natural landscape, exemplifying the unity of nature and man, as was intended in God's world.