Fast boats are indeed a common and convenient choice to travel to the Three Gili Islands and Lombok. This service allows you to directly reach one of the three Gili islands, such as Gili Trawangan, Gili Air, and Lombok, as it offers a direct journey from island to island. Although not extensive, there are already several fast boat companies providing direct crossing services from Nusa Penida to the Three Gili Islands and Lombok.