She was launched in 2002 and entered service between Holyhead and Dublin the following year.

Her former high-speed running mate, Stena Explorer, operated the now-defunct Holyhead–Dún Laoghaire route until 2015.

Stena Adventurer has two decks reserved for normal passenger vehicles and freight trailers.

Following damage to port infrastructure at the Port of Holyhead during Storm Darragh in December 2024 and the subsequent temporary closure of the port the ship opened a route from Dublin to Fishguard initially for freight but shortly afterwards for all traffic types - motorists & foot passengers.

There is one crossing in each direction daily at 09:00 ex Fishguard & 23:00 ex Dublin.