Castlemartyr isn't really a village in the traditional sense. It's a location, defined by one thing: the resort. A 1210 castle belonging to the Barrymore family—well, technically the Boyle Earls of Cork after the 17th century—still stands within the hotel grounds. The old stone, the old walls. They're there. You can see them.
The village itself is modest. A cluster of houses, a few services, some farmland around it. East Cork dairying country. Midleton is 12 kilometres away if you want a proper town. Youghal is 20 kilometres toward the coast. Most people here either work, live quietly, or are arriving at the hotel.
The castle ruin is genuinely impressive—genuine medieval stonework, genuine age. Richard Boyle, the Great Earl of Cork, made it his seat in the 1600s. It matters historically. And yes, the luxury hotel around it is architecturally thoughtful. If you're staying there, you're sleeping in the presence of something old and real.
If a local was sitting beside you, this is the bit where they'd lean in.