A circular path leads through the old slate tips, past the quarry pit (now a lake with a small waterfall) and up to the engine house which has good views of the valley and coastline.
The engine house is the only one preserved in North Cornwall. You can safely wander around inside (there are grilles covering the pit where the beam engine once was).
The slate tips have been colonised by wildflowers. Wild honeysuckle, gorse, foxgloves and heather make an attractive scented floral display throughout the summer. In June, some large elder trees are in flower - ideal if you fancy making elderflower cordial. In Autumn there are blackberries, sloes and elderberries.
Directions
Turn right out of Park Farm and head down Trewarmett Hill. Continue past the turnings on the right to Trebarwith Strand and Bowithick Hill leading up to Delabole. 100 yards past Bowithick hill there is a short track on the left leading up into the quarry with parking for a few cars.