It's called Ty Mai. It's near Newborough on Anglesey. It's one of three lodges in the same field. They're spaced out, so you've got your own bit.
The lodge sleeps four. Two bedrooms, one bathroom. It's got a 4 Star rating. That means it's nicely done. The space is all open plan downstairs, so you're not shut away in different rooms.
It's a good spot for getting around. Newborough Forest and beach are about a ten minute drive. You can walk out to Llanddwyn Island from there. It's a tidal island, so check the times. The beach is huge when the tide's out.
Plas Newydd, the big National Trust house on the Menai Strait, is worth a visit if you like that sort of thing. It's about twenty minutes by car. National Trust Plas Newydd.
If it rains, there's a TV and WiFi. You can bring one dog. The parking is right outside the lodge.
For planning walks, the Anglesey Coastal Path site has maps.