To move from one island to another the formal procedure is to take the Public boat (ferry) to Bangsal and then a further similar ferry to the required island departing from Bangsal. To return the reverse is required. This can be confusing and co-ordinating the timing with the connecting boat departing from Bangsal may be either difficult or elusive. There is also a limited official inter-island Island Hopping service provided.
Ferry operators may sometimes enter into informal arrangements with passengers to journey inter-island. In this situation a passenger boards a boat that is meant to go directly to Bangsal from one of the three Gili islands but instead it detours and sets down on the beach at another island whilst en-route. The prices are a movable feast. Inter-island access on the public boats in this manner is dependant upon timing, weather, loading, payment and the inclination of the crew to facilitate an inter-island journey and such arrangements are not officially sanctioned. The standard procedure is to travel to Bangsal and make a separate trip to the different island or to use the very limited official service.
Island Hopping boat, A limited formal Island hopping boat service is provided by Koperasi Angkutan Laut Karya Bahari, this is the same local koperasi (maritime transport co-operative) that provides the Public Boat ferry service.
Charter boat, The official charter boat service provided by Koperasi Angkutan laut Karya Bahari is permitted to carry a maximum of 12 persons. Informal private charters are also available. Prices are subject to negotiation, take your time over the process.