if you want to go to Seven Rila lakes and want to have more detailed map, you can use this one. These two maps are in different scale, and first show area from Panichishte to Rila monastery and from Ivan Vazov hut to Maliovitza area with all marked summer and winter paths.
Second map is more focused to Lakes area – from Zeleni preslap to Lake peak with all secret paths, benches, fountains and interesting places around.
This maps are made on English, as a lot foreigner tourists want to go to Lakes, but except advertising information, self guided info missing. If you need and article with guiding and tips how to travel to and around Lakes.