Boyana Church can be found in a residential neighbourhood on the outskirts of Sofia. On my first visit, my taxi driver didn't know its location, but after asking for some directions we safely arrived there. The little church is hidden in a lovely park. I had to wait there sometime before I was able to buy a ticket, and later before I was allowed to get into the church (because of its small size, only small groups can go in at the same time). The inside of the church is the reason to go here. All its walls are covered with frescoes. Dark blue is the main colour, and the paintings are now in good repair.
During my second visit, I arrived in a rental car. There is little parking in the street in front of it, but as visitors never will stay long that won't be a problem. Tickets are sold in a special booth near the entrance - the fee is 10 Lev (5 EUR). From there you walk a few hundred meters through a forest until you come to a sign where you are supposed to wait your turn to enter the church. There were no other visitors however when I visited on a Friday afternoon in late June. A woman let me in and I had to leave my small backpack in the front room, before entering the church halls with the paintings.
What struck me most this time is how small it all is. The paintings are surely worth it, they are very clear and in good shape. Especially when you consider that they were made in the 13th century. Since my previous visit, and also that of other reviewers (the last in 2017), a WHS plaque has been added. It is attached to the left of the church door, at the white plaster that you can see in all pictures of the church front.