County Kerry, in Southwest Ireland, is regarded as perhaps the most scenic county in Ireland and is certainly the most renowned for its scenery. It holds most of Ireland's highest mountains (including the highest, Carrauntuohill), its most westerly fringes and holds a special place in Irish culture. It became a popular tourist attraction in the 19th century and is still very popular today, despite considerable rainfall. In some places the tourist pressure has arguably had a mixed effect but in general the county is friendly and relaxed as well as beautiful.
English is the dominant language in Kerry. However, the county is home to some small Gaeltacht communities, which are Irish-speaking. Despite this, virtually all Gaeltacht residents are bilingual and will have no issue speaking in English to an outsider, so don't panic if you find yourself in the middle of Dingle at some stage.
There is the small international Kerry Airport at Farranfore, between Tralee and Killarney. It is served by Ryanair, and summer charters and has regularly scheduled flights to Dublin, London Stansted, London Luton. However, Kerry is easily connected to Cork Airport, which serves more destinations, and also Shannon Airport near by. (Flights to USA, Canada and the rest of Europe, including Paris CDG.)
There is a regular rail service to Killarney, Farranfore and Tralee from Dublin and Cork and there are connections from all stations in Ireland. See the Irish Rail website for timetables
If coming from Clare or Galway there is a car ferry across the Shannon estuary between Killimer (Clare) and Tarbert (Kerry) which can save driving and is a scenic route. It departs hourly all year-round and every half hour in Summer from both sides. The ferry crosses the mouth of the river Shannon as it enters the Atlantic and dolphins are commonly seen from the ferry
Bus Eireann runs regular bus services to and within Kerry. See the Bus Eireann website
There are numerous major and local car rental companies that have locations in County Kerry. Most will have rental desks in Kerry airport Killarney town or both.
The Ring of Kerry is the best known area of natural beauty in Ireland. It is a 120 mile circuit around the Iveragh Peninsula in south Kerry passing through Killarney, Killorglin, Glenbeigh, Caherciveen, Waterville, Sneem and Kenmare.
Watch a game of Gaelic football. This is Ireland's national game. It is the dominant sport in Kerry and the county team has won more All-Ireland Senior Football Championships than any other.
Puffin stew (local speciality)
As anywhere else in Ireland, there are many bed and breakfasts (B&B) in Kerry and around the Ring of Kerry. They are all priced about the same, which is 35 euro per person during the summer.
Be wary of country roads. Rural areas in Ireland are infamous for their poor maintenance and reckless drivers, and Kerry's massive country setting makes it dangerous for the uninitiated. Take it easy when negotiating corners and watch for potholes.
Kerry's villages and towns are largely safe, both day and night. However, be aware that Tralee is not a small town by Irish standard and happens to have a significant student population. Exercise the same precautions you would use in any town or city, avoid interacting with drunkards, and ask the locals for advice on where to stay away from at night.