There are several departure / arrival harbors in Bali. The duration of trip depends on the harbor location.
This is the most popular harbor to connect Bali and Lombok (including Gilis Island). Most fast boats depart / arrive via this harbor. The fast boat trip between Padangbai harbor to Lombok / Gilis Island is about 1 hour 30 minutes (could be less or more than that, depends on wave condition). Unfortunately, Padangbai harbor is pretty far from main tourist areas in Bali (e.g. Sanur, Kuta, Legian, Seminyak, Ubud, Kerobokan). The overland trip takes about 45 minutes to more than 1 hour on normal traffic. Padangbai harbor is also the most crowded harbor. The touts are spread in every place. If you want to use fast boat via this harbor, we suggest you to use the provided shuttle service from the fast boat company either for pickup or drop off. The shuttle is free (price is included in ticket fare) for most tourist destinations in Bali. If your destination is out of free shuttle coverage area, the driver will inform you about the excess cost. If you don’t want to use free shuttle service, you need to keep our contact numbers so you can reach the proper check in gate once you arrived at Padangbai harbor.
Departure / arrival via Sanur harbor is popular because its location is much closer to main tourist areas (e.g. Sanur, Kuta, Legian, Seminyak, Nusa Dua, Denpasar, Airport) and public transport can be achieved easily. The overland trip takes just in minutes to 30 minutes on normal traffic. The sea trip to Lombok / Gilis Island takes much longer than Padangbai harbor, i.e. about 2 hours 30 minutes (could be less or more, depends on wave condition). The boat may stop in minutes at Nusa Lembongan to pickup / drop the passengers. Sanur is the departure for fast boat heading to Nusa Lembongan Island. The sea trip to Nusa Lembongan Island takes about 30 minutes.
Benoa / Serangan Harbor
Benoa and Serangan harbor is on same region. While Benoa is designated as formal harbor in the area, Serangan is out of that formal area (likely as private harbor). This two harbors are less popular than Sanur, but have similar advantages (close to main tourist areas). The sea trip to Lombok / Gilis Island takes about 2 hours 30 minutes (could be less or more, depends on wave condition). Some trips may stop in minutes at Padangbai harbor and results more longer trip time.
Amed harbor is located in the northern side of Bali. Amed is popular for its diving and snorkeling spot. Sea trip via Amed to Lombok / Gilis Island takes less time, i.e. about 1 hour in normal wave. Note that since Amed is the less popular and furthest harbor, the fast boats will not be operated at low season due to lack of passengers.