Distance: The total distance for this hike is 19kms kilometers (loop hike) from the parking
Elevation gain: The total incline is 1070 meters
Moving time: 5hrs
Difficulty: I would rate this as an easy/intermediate hike.
Address start: Seven Rila Lakes Lift – Bottom Station
Price: if you plan to use the lift then the hike reduces to 3hrs and 450mtrs elevation with approx8km. a return ticket for the lifts cost 25 BGN which is roughly 12.5 EUR per person. Keep in mind that the lifts are not open all year round, check the official website to have an idea of opening times.