Feet and Wheels
Cornwall with its mild climate is fortunate in having a number of lovely and unusual gardens open to the public as well as a good number of National Trust Country Houses and Gardens.
The Forestry Commission's Cardinham Woods is about 25 minutes drive from Hendrifton Farm. It's a beautiful mixed woodland with waymarked trails for walkers and cyclists. It's dog friendly and the walking trails, easy, moderate and hard, range from 1.5 to 4 miles. You can hire bikes when you are there, or you can take your own, and if you fancy it, you could try the 12km Bodmin Beast!
The Camel Trail is an 18 mile surfaced trail for walkers and cyclists along the disused railway line between Wenfordbridge, Bodmin, Wadebridge and Padstow. You can hire bikes at each location.
Siblyback Lake is at the end of the lane, about a mile by road from Hendrifton Farm, and it's about 3 miles around the lake. Walkers and cyclists are welcome.
For a more local walk, from Hendrifton Farm you can stroll across fields and moorland to reach Golitha Falls; the opposite direction takes you to the village of Common Moor and on to Bodmin Moor; and if you follow the lane a little way you can take the footpath to Siblyback Lake. If you want circular walks on Bodmin Moor, or a choice of 307 walks in Cornwall, then I walk Cornwall is a great site to look at.
Take the train
If you fancy taking the train then you could experience some great scenic railway journeys. The Looe Valley Line takes you through wooded valleys and alongside the estuary from Liskeard to Looe. Or you could try the Bodmin and Wenford Steam Railway from Bodmin General Station. The mainline train from Liskeard will get you to Penzance in about 90 minutes or you could change at St Erth for the scenic, 10 minute, coastal journey to St Ives.
You could hire a bike and have it delivered to you at Hendrifton Farm - Go By Cycle offer this!