We took a day trip to Kerry on the train, as part of Rail Tours Gap of Dunloe trip.
The trip involved taking the train to Killarney from Dublin, with a change at Mallow on the way. Then you get a jaunting car trip over the Gap of Dunloe, through the Black Valley, followed by a boat trip across the three lakes of Killarney, after which you have some time to do with as you please, and then you repeat the train journey back home.
Both the driver of the jaunting car (Donal) and the Skipper of the boat (Dermot) were lovely and very funny. The lady who collected us and delivered us back to the train station (Laura) was also hilarious.
A bonus on the day, was the sighting of a family group of Sika Deer in the National Park, we saw a small herd of about 25 Red Deer on the Island Monastery that Brian Boru studied in.
Everything is taken care of in the price of your ticket, apart from food, drinks and any shopping you may wish to do.
This was a very enjoyable day and the I would highly recommend it.