The Holyhead to Dun Laoghaire Irish sea ferry crossing is operated around the year, using two different fast ferries, the mighty Stena Explorer in the summer and the recently refurbished (early 2010) and slightly faster Stena Express for the remainder of the year.
From the end of June to early September travel by the world's largest fastcraft ferry between Holyhead and Dun Laoghaire on the HSS Stena Explorer. This impressive vessel zips across the Irish Sea in just 2 hours.
Then throughout the year the Stena Express manages the Irish Sea crossing in just 1 hour 50 minutes. Both vessels offer a wide range of facilities to ensure the short journey seems even faster.
There are a range of lounges to choose from, which also includes, for a small extra payment, the Premium Stena Plus Lounge, offering complimentary snacks and personal service to your seat. There's an observation area at the front of the ship, Barista Coffee Lounge, Food City restaurant, and the Metropolitan Bar, as well as on board shopping and a play area for kids. The vessels offers free Wi-Fi if you have your own laptop, PDA or smartphone. All you need is your access card from reception.
The ferry departure times vary depending on the season so click this link to check the timetables of the ferry crossing from Holyhead to Dublin.