Swn Y Mor is a micro-lodge on Anglesey. It's out past Holyhead, on the coast at Penrhosfeilw. It's detached, on some farmland. You get your own patio and a hot tub.
It's for two people. One bedroom, one bathroom. Everything is on the ground floor. It has a 5 Star rating, so everything is in good order and well-equipped.
The main thing is the view. You can see South Stack Lighthouse one way and the mountains of Snowdonia the other. It's very quiet. You're right on the edge of the RSPB reserve at South Stack. The RSPB South Stack Cliffs page has details on the birds. You'll see puffins in season, and seals in the water below.
You can walk straight from the door onto the coastal path. Porth Dafarch beach is about a mile's walk. The nearest proper shops and a few places to eat are in Trearddur Bay, about three miles away by car.
Holyhead is a short drive for ferries to Ireland. For a day out, driving into Snowdonia is straightforward. Conwy Castle and Caernarfon Castle are both about a 30 minute drive. Anglesey has a lot of its own history too, like Beaumaris Castle.
Facilities include a dishwasher, WiFi, TV, and bedding is provided. There's parking and an electric vehicle charger. One well-behaved dog is welcome. There's bicycle storage if you bring bikes.
Useful links for planning: Visit Anglesey and Snowdonia National Park Authority.