Lantic Bay and Polruan Circular
This walk has a bit of everything. There is about two and half hours of actual walking time, but you could take much longer as there is lots to see. There are plenty of eating places in Polruan (the pub on the harbour is good). Alternatively, if you have the time, you could cross to Fowey on the regular passenger ferry for shops and food. Start at the National Trust Lantic Bay car park - Google Maps link here (Paid car park)
Follow the signed path from the car park towards Lantic Beach. The beach regularly comes up in lists of top Cornwall and top UK beaches. Steep climb down and up but worth it. If you are not going down to the beach turn right when you get to the coast path.
When the path comes out on the road at the top of Polruan the best route is to turn left - great views over the estuary. At the bottom of the hill you can follow signs for the blockhouse - wonderful ruined 15th century castle by the water.
After just over a mile there is a path signed off to the left to Lanteglos Church - this is a quick route back to the car park, but you will miss out on Pont (above). Pont sits at the head of Pont Pill estuary and is a lovely collection of lime kilns, quays and cottages.
Wonderful views down to Lantic beach and then you will start to see the red and white marker on Gribben Head in the distance. This is very near the house where Daphne du Maurier lived.
Coming out of Polruan, walk up from the harbour and turn left at the phone box (East Street). At the end of this follow the "Hall Walk" sign up the steps. This will take you into National Trust woodland where you follow signs to Pont. Great views down into the small estuary.
From Pont quay the footpath to Lanteglos Church is signposted up through the woods. The church is lovely and worth a stop. Turn left on the road outside the church and this will take you back to the car park