Dublin: Dublin Bay Cruise from Dun Laoghaire to Howth

Dublin Bay’s best views arrive from the water, not the road. On the St Bridget, you sail from Dun Laoghaire’s East Pier toward Howth, passing islands, lighthouses, Martello towers, and the Dublin Mountains before reaching a harbor where seals often swim near the boats. The changing view is the main event, and the ride gives you a side of Dublin that buses and trains cannot provide.

I like the easy one-way plan, which lets you spend time in Howth and return by DART. I also like the friendly crew, including Eugene, who has helped passengers with local food tips. The main drawback is weather: the open upper deck is the best place for views, but wind and rain can make the lower deck more comfortable, where the commentary may be hard to hear.

Key points at a glance

• Sail from Dun Laoghaire to Howth: The route takes about 60 to 70 minutes and connects two of Dublin’s most appealing coastal towns.
• Watch for seals at Howth Harbor: Seals are a regular highlight as the boat comes into Howth, though wildlife sightings can never be promised.
• Use the upper deck for the best views: You’ll get clearer photo opportunities, but bring a jacket because the bay can feel cold even on a bright day.
• See Dublin’s islands and landmarks from offshore: Look for Dalkey Island, Ireland’s Eye, Lambay Island, Bull Island, Baily Lighthouse, and Joyce’s Martello Tower.
• Return by DART: A discounted DART voucher is included, though you can also arrange a return ferry when boarding.
• Good for families: The trip suits all ages, and children under three can join free.

Why Dublin Bay is best seen from a boat

Dublin Bay is large enough to make the city feel completely different from offshore. From the St Bridget, you are not simply looking at a single attraction. You are watching the shoreline change from Dun Laoghaire’s broad harbor to the rocky coast around Howth.

That is what gives this trip its value. A train ride between the two towns is quicker, but the railway keeps you close to the land. From the boat, you see the full sweep of the bay, the headlands, the islands, and the working waterway. You also get a pleasant hour to sit, take photographs, and let Dublin’s noise fall away.

The cruise costs about $32 per person. That is more than a basic public transport fare, but you are paying for the crossing and the sightseeing at the same time. If you already plan to visit Howth, the trip makes practical sense because it turns the journey into part of your day rather than treating transport as dead time.

Boarding at Dun Laoghaire’s East Pier

The starting point is on East Pier, just before the Bandstand in Dun Laoghaire. Give yourself enough time to find the boarding area, particularly if you are traveling with children or carrying bags. Comfortable shoes are sensible, and comfortable clothes matter more than you might expect once the boat moves into open water.

Dun Laoghaire is a fitting place to begin. Its piers stretch into Dublin Bay, giving you an immediate sense of the scale of the crossing. As the St Bridget leaves, you get views back toward the harbor and the city side of the bay.

You can usually choose between the upper deck and covered seating below. I would head upstairs when the weather is calm. The higher position gives you better sightlines and makes it easier to spot landmarks on both sides of the boat. It is also the right place for photographs, since windows will not get in the way.

The tradeoff is simple: the upper deck is exposed. Wind can make a mild day feel chilly, and rain can arrive quickly on the bay. Bring a jacket even if Dun Laoghaire feels sunny at departure.

The 60 to 70 minute crossing

The sailing lasts about 60 to 70 minutes, although the activity is also described as a one-hour experience. That small difference is not important for planning your day, but leave a little flexibility if you have a meal reservation or a timed visit in Howth.

The route gives you views that change gradually rather than arriving as a series of formal stops. You will see the Dublin Mountains behind the southern shore, then open water and islands as the boat works north. The scenery is especially rewarding when the bay is full of sailing boats, as it can be on a bright day with fair winds.

The St Bridget provides an enjoyable way to cover the distance, but this is not a high-speed thrill ride. The pleasure comes from the pace. You have time to look, point out landmarks, and watch the coast draw nearer. On rougher days, the boat may feel bumpy. That is normal for a crossing on open water, but anyone sensitive to motion should choose a seat below and toward the middle of the boat if available.

Commentary and stories form part of the experience. The onboard information includes local stories and myths, which add context to the places you pass. The audio can be difficult to hear from the lower deck, especially when the weather keeps people inside. If the commentary matters to you, try to sit upstairs or near the source of the sound.

Islands, towers, and the open bay

Several landmarks give the crossing its shape. Dalkey Island is one of the first major points of interest from the southern side of the bay. Its presence helps you understand how close Dublin’s coastal towns are to open sea, while still feeling distinct from the city center.

Look also for Joyce’s Martello Tower. Martello towers were built as defensive structures, and this one is linked to James Joyce’s writing. You do not get a museum visit or a long stop here, but seeing the tower from the water gives it useful setting.

Further out, Ireland’s Eye and Lambay Island add scale to the view. The islands are part of what makes this route feel like a proper coastal excursion rather than a short harbor shuttle. Visibility will affect how clearly you see them, so do not judge the trip by the number of landmarks you can photograph on a gray day.

Bull Island is another notable sight. It is a wildlife reserve close to Dublin, and its broad shore shows how much natural space remains around the capital. The bay is not just a backdrop for city sightseeing. It is also a living environment, with birds, marine life, working boats, and changing tides.

Baily Lighthouse marks the Howth side of the journey. Its position on the headland makes it one of the most memorable views as you approach the peninsula. The lighthouse, cliffs, and harbor give the final part of the crossing a more rugged feel than the open water near Dun Laoghaire.

Arriving at Howth Harbor

The boat finishes at Howth’s West Pier, bringing you into a traditional fishing village with seafood restaurants and coastal walks. This is where the cruise becomes particularly useful. Instead of arriving in Howth by train and then looking for the harbor, you approach directly from the bay.

Keep your eyes on the water as you come in. Seals often swim near Howth Harbor, and watching them bob beside the boats is one of the most enjoyable details of the trip. You may also see other marine life. A dolphin sighting has occurred on the route, and an unusual Portuguese man o’ war jellyfish was once spotted, but treat these as lucky extras rather than expected parts of the crossing.

Howth works well after the boat ride because you can choose your own pace. You might stop for fish or chowder, take a short walk, or spend longer along the coast. Crew member Eugene has been especially helpful with food suggestions, including a recommendation for chowder at The Brass Monkey. That kind of practical local tip can save you from wandering hungry along the pier.

The activity itself does not include a meal or a guided walk around Howth. You are free to make your own plan after arrival. This is a strength if you like independence, but it means you should not book the cruise expecting a full Howth tour.

Getting back to Dun Laoghaire

The advertised experience is a one-way ferry trip. A return ferry may be available to book when you board, but the included transport benefit is a voucher for a discounted DART journey after sailing.

The DART return is one of the smartest parts of the arrangement. You can spend time in Howth, then take the train back to Dun Laoghaire without retracing the same boat route. Several passengers have used this combination successfully, making a simple coastal loop from the south side of Dublin to the north side and back.

Check the exact voucher conditions when boarding. One passenger had difficulty receiving the discount, so do not assume the reduction will apply automatically without asking. The activity information also uses both a finish at Howth’s West Pier and a general meeting-point description, so confirm the return plan with staff if you need to end back at Dun Laoghaire.

Weather, seating, and what to bring

Weather is the biggest factor in how much you enjoy this trip. On a calm, sunny day, the bay can look superb, with sailing boats spread across the water and clear views toward the islands and headlands. On a wet or windy day, the crossing is still possible, but you may spend more time inside.

Bring:

• A warm, water-resistant jacket
• Comfortable shoes
• Comfortable clothes
• A phone or camera with a secure grip

The covered lower deck offers shelter and windows, which can be a relief when rain begins. The problem is that the onboard audio may not carry clearly downstairs. If the weather turns bad, you may need to choose between staying dry and hearing every story.

The boat has room across its decks, so you should have reasonable chances to look out and take photographs. Still, the best viewing spots are not guaranteed. Arrive with enough time to settle in, then move around when it is safe and practical.

The trip is suitable for all ages. Children under three can join free, making it a manageable family outing. The gentle sightseeing format also works for older children, especially those who enjoy boats, seals, and spotting islands. A dog has been brought aboard and was warmly received, but the supplied details do not set out a formal pet policy, so ask the operator before relying on that.

Who gets the most from this cruise

I would recommend the sailing to anyone who wants to see Dublin beyond its central streets. It is particularly useful if you are already planning to visit Howth and like the idea of making the journey part of the day.

Families get an easy activity with a clear beginning and end. Couples and solo visitors get a relaxed hour with plenty of photo opportunities. Local residents can also use it as a pleasant change from the usual DART trip, especially on a bright day.

This may not be the best choice if you need a fully guided tour, dislike wind and boat movement, or have a tightly packed schedule. The commentary is not always easy to hear from below, and the sea can be bumpy. You should also remember that the main wildlife sightings, including seals and dolphins, depend on luck.

Booking value and final advice

At $32 per person, the cruise is fairly priced if you value scenic transport and plan to spend time in Howth. The discounted DART voucher improves the overall deal, since you can make a one-way coastal journey and return by train. If you only want the cheapest way between the two towns, take the DART instead.

I would book this trip when the bay views matter as much as the destination. Choose a day with a decent forecast if you can, bring a jacket, and aim for the upper deck early. Keep the lower deck in mind as a useful fallback, not a poor substitute.

Book the cruise if you want a simple, memorable way to connect Dun Laoghaire and Howth, with islands, lighthouses, wildlife, and Dublin’s coastline unfolding around you. Skip it if your schedule is tight or you need guaranteed calm water and clear commentary. For most visitors with a spare hour and a flexible return plan, it is a rewarding addition to a Dublin coastal day.

FAQ

Where does the Dublin Bay cruise start?

The cruise starts at East Pier in Dun Laoghaire, just before the Bandstand.

Where does the boat arrive?

The boat arrives at West Pier in Howth.

How long does the cruise take?

The voyage takes about 60 to 70 minutes. The activity is also listed as lasting one hour.

Is the ferry ticket one-way or return?

The included ticket is for a one-way ferry trip from Dun Laoghaire to Howth. A return ferry may be available to book when boarding.

How can I return to Dun Laoghaire?

You receive a voucher for a discounted DART trip after sailing. Ask staff about the discount when you board.

What can I see during the crossing?

You may see the Dublin Mountains, Ireland’s Eye, Lambay Island, Dalkey Island, Bull Island, Joyce’s Martello Tower, and Baily Lighthouse.

Can I see seals?

Seals can often be seen near Howth Harbor, but wildlife sightings are not guaranteed.

Is the cruise suitable for children?

Yes. The trip is suitable for all ages, and children under three can join free.