Fast Boats to Nusa Penida and Lembongan: Ports, Operators and Sea Conditions

Fast boats to Nusa Penida and Nusa Lembongan leave mainly from Sanur, with a crossing that travel guides put at roughly 30 to 45 minutes. The route crosses open water in the Badung Strait, and sea conditions decide whether a crossing is comfortable or wise. We name no operators. This page explains the ports, what to expect on board, and what the harbor authority has said about weather.

Where the boats leave from

Sanur, on Bali's southeast coast, is the main port for the Nusa islands. Travel guides also mention boats from Serangan and from Padang Bai in East Bali, where a slower vehicle ferry runs to Nusa Penida. Sanur's harbor is about 11 miles from the airport by road, about 12 from Seminyak and about 13 from Ubud.

Where they arrive

On Nusa Penida, boats arrive at harbors on the north coast, which travel guides name as Toyapakeh, Buyuk and Sampalan. On Nusa Lembongan, they arrive at Jungutbatu beach in the north or at Mushroom Bay in the southwest. Check which landing your boat uses before you book a place to stay.

The crossing

Travel guides give the crossing from Sanur as roughly 30 minutes to Nusa Penida and 35 to 45 minutes to Lembongan. Those are their figures, not an official timetable. We have no official schedule, so check times directly with an operator, and reconfirm the day before.

What boarding is like

Boarding differs by island. Travel guides note that most boats to Lembongan involve a wet landing, with passengers wading through water that can be knee-deep or higher. Wear shorts and sandals, keep your phone and passport in a dry bag, and bring bags you can manage on sand.

On board

Travel guides describe the fast boats as small high-speed craft, and the ride can be bumpy. Our advice is to sit toward the back, where the motion is less, to take seasickness medication beforehand if you need it, and to find out where the life jackets are before the boat leaves.

Luggage

Travel light for an island leg. Many travelers leave their large suitcases at a hotel on the mainland and take a small bag across. That makes a wet landing simple and keeps your things dry. Ask your mainland hotel whether it stores luggage for returning guests.

Sea conditions and the harbor authority

The Sanur to Nusa Penida route crosses the Badung Strait, and it comes under the harbor master's office known as KSOP Benoa. Indonesia's state news agency reports that this office issues the sailing approval each boat needs before departure, and that it has told operators not to send boats out when the weather is poor.

What the forecasts say

The same agency reported that in May 2023 Indonesia's meteorological agency forecast waves of 2.5 to 4 meters in the Badung Strait, and that waves above 2.5 meters put boats on this route at risk. Wave forecasts for Bali's waters are published by the meteorological agency, and an operator should be able to tell you what the day's forecast is.

The 2025 accident

The risk is not theoretical. The state news agency reported that on 5 August 2025 a fast boat arriving from Nusa Penida with 75 passengers capsized in the entrance channel to Sanur harbor after being hit by a large wave, and that two passengers died. The harbor master attributed it to natural conditions and said the boat was within its certified capacity.

Choosing a boat

The operator is the choice a passenger controls. We name and rank none, because we have no official source that compares them. Travel guides advise travelers who have concerns about the vessel, the operator, overloading or the weather not to board, and that advice costs nothing to follow.

What to look for

These are our own suggestions.

• Book directly or through your accommodation, and get a named boat and time.
• Take a morning crossing, in daylight.
• Check that there is a life jacket for every passenger.
• Count the seats and the people; walk away from an overloaded boat.
• Ask what happens to your ticket if the crossing is cancelled.

When to say no

If the sea looks rough from the beach, if the boat is crowded beyond its seats, or if departure is being pushed late into the afternoon, our advice is to wait for another boat or another day. A lost ticket is a small cost.

Season

We have no official source on which months are roughest on this crossing, so we name none as fact. Travel guides describe sea conditions between Bali and Lombok as worst in July and August, when swells are strongest, and the 2025 accident happened in August. The dry season is not the same thing as a calm sea.

Check on the day

Conditions change from day to day. Our advice is to ask your accommodation or the operator about the forecast on the evening before, and to keep your plans loose enough to move the crossing by a day if the answer is poor.

Practical points

A few practical matters apply to every crossing. Carry cash for the islands. Bring any medicine you rely on. Check how your travel insurance treats boat travel. The State Department strongly recommends insurance covering medical evacuation in Indonesia, and care on a small island begins with a boat back.

The day trip

A day trip to Nusa Penida means two crossings in one day, with the return in the afternoon. Book a return that lands in Sanur well before dark, and do not plan anything fixed for that evening.

Where the crossing sits in your trip

Because the boat depends on the sea, where it falls in the itinerary matters as much as which boat you take. How to place an island leg so that a delayed crossing costs you little is set out in Bali, in Its Own Time.