Nilo-Stolobenskaya Pustyn monastery is located in the most picturesque place of the Lake Seliger. If you go to Seliger for excursion and not for fishing, you should go to the monastery. From there you can take a boat trip along the most picturesque places of Lake Seliger.
Nilo-Stolobenskaya Pustyn was founded on the site of the hermitic abode of St. Nilus where he settled in 1528. St. Nilus spent all his time in prayers and even gave the vow of non-incumbency. So, he even slept in upright posture supporting himself with ropes. St. Nilus died in 1555 and in 1594 a monastery was founded by the will of St. Nilus on the island Stolbny.
In 17 century it was a very small and poor monastery, and in 18 century on rich donations there was erected a big complex of church buildings and backhouses. Karl Rossi, the most famous architect of that time who created many beautiful palaces in Petersburg, was one of the designers of the Nilo-Stolobenskaya Pustyn.
Maybe this fact explains the appearance of churches and the other buildings of the monastery. All of them were built in the style of baroque and remind of the palatial architecture of the northern capital. The main church of the monastery is the Epiphany Cathedral.
Up to 1995 the relics of St. Nilus were kept at the city of Ostashkov but after the monastery was returned to the Church they were moved to the monastery. Now the shrine with relics of St. Nilus is at the Epiphany Cathedral. You may ascend a tall bell-tower, which is close to the cathedral. By all means should you do it as from the bell-tower you can have the most picturesque view on the Lake Seliger.
Apart from the Epiphany Cathedral, the monastery has another 4 churches such as the Church of St. Nilus of Stolbny, the Church of Sts. Peter and Paul and the Church of All Saints. On the farthest end of the island Stolbny the picturesque Church of the Exaltation of the Cross is located. You should have a walk to it to see the entire monastery.