The Slate Quarry is distant about six miles from Bangor, on the road to Capel Curig, and is in every respect worthy of a visit from the Tourist; it exhibits a most interesting and surprising display of art and industry, from 7 to 800 men being in constant employment there, and the vast excavation, which from near thirty years labour at it, is now made into the heart of the mountain, presents to the view a variety of picturesque and magnificent scenery, richly deserving the inspection of the artist. Within half a mile of the Slate Quarry is Ogwen Bank, an elegant and romantic little retreat—a perfect _bijou_, designed by the late Lord Penrhyn, and still used by the family, as an occasional resort for refreshment and recreation, on paying a morning visit to the Quarry, or other objects of curiosity in the vicinity. Near to this is Pen-issa-nant, formerly intended as a Dairy and Poultry Farm to Penrhyn Castle, for which purposes, the most ample, elegant, and ingenious arrangements were made, and the house designed and fitted up with peculiar simplicity and prettiness, perfectly correspondent with the nature of its object. These two places are accessible to all respectable visitors; the road to them, from Bangor, abounds in grand and interesting prospects.—Penrhyn Castle and Woods, at all times a rich and remarkable feature in the Scenery—the Sea, bounded by the distant Promontory of Ormes Head—the protruding bulkiness of Pen-maen-mawr—the bold and mighty barrier of Mountains, forming the most picturesque lines with the horizon, and extending nearly all round the distant Scene—these are the chief ingredients of this distinguished and beautiful landscape. The present proprietor of Penrhyn Castle is G. H. D. Pennant, Esq. to whom the property was left. This gentleman seems to possess a spirit of improvement no less active than his noble predecessor. The Park, which till within these few years formed the domain to this stately residence, has been very extensively enlarged by the present proprietor, who has enclosed the same by a wall of considerable length, which is done in a manner deserving the example of others, for its neat, strong, and masterly work;—the coping of the wall is peculiarly handsome, and characteristic of the county, being formed of the waste ends of the Slate rock, fixed in a rough and uneven manner, giving the whole a bold and substantial appearance.—Within the precincts of this Park, and protruding a considerable distance into the sea, is a very handsome building, containing a large private sea-water bath, with warm baths contiguous to it. This edifice is understood to have cost the late Lord Penrhyn not less than £4000. and perhaps not to be equalled for elegance and commodiousness in the kingdom. Penrhyn Castle is itself a modern building, (with the exception of one small circular Tower) and was erected by Lord Penrhyn, from designs of the late Samuel Wyatt, Esq., a brother of his Lordship’s Agent, before-mentioned.