These are 3 small sand islands called, Gili Trawangan, Meno and Gili Air. There are no paved roads or motorized vehicles on the islands; The most important means of transport are horse-drawn carriages. The largest and main island is Gili Trawangan, there are the most tourists.
You can walk within 1-2 hours throw the whole islands. On Gili Trawangan you can find a party for every taste, on Gili Air you can get to know the locals better and on Gili Meno you feel in harmony with nature.
Small but beautiful describes the islands perfectly! There were a lot of backpackers and a lot of divers.