Tucstan is a detached cottage near Constantine, in a hamlet called Bridge. It's on a shared drive but you get the whole place and grounds to yourselves.
It sleeps four. There are three bedrooms upstairs and one bathroom down. It's got a 4 Star rating, which means it's well-kept and comfortable. There's a woodburning stove for cooler evenings.
The local pub is about a mile away. The nearest shop is about the same. For the beach, you're looking at a five-mile drive.
Falmouth is about fifteen minutes by car.
The Lizard peninsula is good for coastal walks. The National Trust Penrose is a solid option for that. You can be at the Eden Project in about half an hour too, if you're into gardens.
On the facilities side: there's a washing machine, parking, wifi, and bedding is included. No pets. The garden's got a patio.
If you want to plan trips, the Visit Cornwall site has information.