These are the suitable ways to get Gili Islands through the sea, from Lombok Mainland:
From Lombok International Airport you can used taxi to get Bangsal or other port in Lombok Island, which only take few hours in journey depend on the traffic, there are a few taxi providers before you step out of the airport gate.
Public boat (ferry), is the standard method to reach Gili Air and is used by both local residents and tourists. The maximum number of passengers is fixed at 20 persons but it is often overloaded with goods and or passengers. If it seems clearly unsafe due to either overloading or prevailing weather conditions then it is most likely best not to board it. The earliest deaprt at 7:30 am, the next around 8:30, it includes the time for slow boarding). There is a ticket office on Gili Air to buy your ticket back to Bangsal, it is located adjacent to the arrival and departure point.
Shuttle boat, This service supplements the Public boat (ferry) service. This is more expensive than the standard Public boat cost .
Charter boat, The official charter boat service provided by Koperasi Angkutan laut Karya Bahari is permitted to carry a maximum of 12 persons. Informal and unofficial charters are also available from private operators to travel from Bangsal to Gili Air. If requiring one try to deal only with the boat operator, ignore the touts and ‘facilitators’ and use your time over a negotiation, any hint of haste or urgency is sure to raise the price.
There’s also a speed boat/fastboat service to take you into Gili Air, to make it easier you can use travel agent service which is offers fast boat ticket by booking online it was easiest and cheapest cost to get Gili Air only in a few minutes.