We went during Sunday mass, so it was rather crowded, but very much worth the wait. Come prepared with a scarf to cover your head and most of the churches prefer you wear a long skirt or dress. You can borrow a shawl to wrap around if you have forgotten. There are two ways to visit the caves- One is with a tour guide (which runs rather infrequent from what we gathered) and the other is self guided, which will cost you about 3-6 UAH depending on the candle you purchase to light your way through the caves. If you are claustrophobic in the slightest, I would not recommend the caves, they were narrow and at times very busy, also, there is only one-way in and one-way out. Once finished in the caves, you can visit the rest of the complexes and the main church tower near the north east of the monastery. You can enter many areas for a small fee, but some were free. I recommend paying to climb the tower as the views of the Kyiv Pechersk Lavra, Motherland Monument and river are stunning.
St. Michael's Golden-Domed Monastery.