Hong Kong, with limited places, we can see vast number of fireflies.
Often, the little fly living environment is easily destroyed because of various human reasons and activities.
So, I tried to have the light trails of the little fireflies and the light of stars in one photo.
Photo was taken on 29 Aug 2017, in Sha Lo Tung, Hong Kong.

Equipment: Nikon D750, with 18mm lens.

Post processing: just combined all trails in one photo.