Our club was founded in 1975, based in south Dublin and currently has some 25 members. The club is an affiliated club with Comhairle Fó-Thuinn – Irish Underwater Council (CFT).  CFT is the co-ordinating body for Underwater Diving Clubs in Ireland and is the representative body for Ireland in the World Underwater Federation (Confédériation Mondiale des Activitiés Subaquatiques – CMAS); so any qualification you receive from CFT will be recognised all over the world.

Our compressor is located in our clubhouse, which is situated on the pier at Bulloch Harbour in Dalkey. Between March and November we dive regularly in Dublin Bay particularly around Dalkey Island and The Muglins.

We organize dive weekends away from Dublin each summer month and, over the years, have dived many parts of the Irish coastline including Hook, Baltimore, Ballinskelligs, Valentia, Dingle, Castlegregory, Kilkee, the Aran Islands, Killary, Inish Bofin, Inish Turk, Clear Island, Mullaghmore, St. John Point, Tory Island, Carrigart, Rathlin Island and Strangford Lough.

Each year we endeavour to find new, exciting destinations for our annual club holiday. In recent years we have made trips to Bonaire (Dutch Antilles) in the Caribean, Sharm El Sheikh, Marsa Alam (Egypt) and Aqaba (Jordan) on the Red Sea, Estartit, Gozo, La Manga, Sicily and the Aeolian Islands in the Mediteranean, Turkey in the Adriatic, Santa Catalina Island off California and the Sea of Cortez in Western Mexico.

Trident Sub Aqua Club actively encourages new members to join and the club devotes much voluntary time into training new recruits with practical lessons in a swimming pool, lectures and trainee dives in Dublin Bay and throughout the country.

A new 7.2m RIB (rigid hull inflatable boat) was purchased in 2008; it is berthed in Dun Laoghaire Marina.

As part of a social and community initiative with Dun Laoghaire Rathdown County Council, Trident teaches Snorkelling to young people from the community in the Blue Pool, Monkstown and awards them a certificate of achievement. This is followed by a high powered boat trip around Dublin Bay and finally a sea snorkel where we try to find marine life to show them. This is as much fun for our members as it is for the children!

A very active social scene is part and parcel of Trident and since the formation of the club many friendships have been forged and one marriage! Regular social events include our annual Christmas Party and summer BBQ. In addition, the craic that follows every dive and the corresponding ‘big fish’ stories which get bigger with every pint are all part of the fun!