Most Javanese, who came to Bali, religion Islam. So every year on a regular basis, every celebration of Eid, they return to Java to gather with their families. At Eid it's Bali becomes more quiet and peaceful.
Loneliness did not last long. Because after Eid holidays over, they come back to Bali. And maybe bring their families more. So that Bali is becoming increasingly crowded by the newcomers.