Local attractions:

Hidden Valley Gardens is as its name suggests is hidden away in a wooded valley where guests are very welcome to enjoy the 4 acres of developing gardens. The garden nursery specialises in unusual perennials and cottage garden plants.
Although in a rural location, no-where in Cornwall is far.

Within a short drive:

The picturesque port of Fowey - boat trips, walks, speciality shops, restaurants, tea rooms and pubs.
The ancient town of Lostwithiel set on the River Fowey. Steeped in history, river walks, salmon fishing and an excellent golf course.
Eden Project
Lost Gardens of Heligan
Lanhydrock House
Tall ships at Charlestown
Bodmin Moor
Beaches - Carlyon Bay, Par, Polkerris, many more close-by. North coast beaches about a 40 minute drive.
Treesmill is Daphne du Maurier country, the novel "House on the Strand" was based on the surrounding area.