A line from Vagon Bay on the west through Catel to Amherst cuts the islet into two unequal parts, differing in geological character. Much of the bed of the northern portion is alluvial; some, indeed, embanked from the sea by General Doyle. The southern is a more elevated platform, and consists of a series of undulating hills, and sloping bosky lanes, and little glens with rippling runnels, until the highest downs dip at once into the waves their magnificent gneiss cliffs, rounding into beautiful bays, embossed with outlying rocks, and worn into clefts and fissures, or running up into exquisite little dingles. This magnificence is confined to the south; the sea and coast views, however, to the east, are finely backed by the islets of Herm and Jedthou, and the more distant ridge of Serque.

Guernsey is an easy study; it may be coasted and threaded, and its objects of natural and archæological interest analysed, in four or five days. In calm weather, however, the cliff beauty of the islet may be contemplated more perfectly from a boat, surveyed from Fermains Bay to Les Hanois.

The coast from Port St. Pierre to St. Sampson is flat, and studded with rocklets, on which loads of vraich and laminaria and asperococcus are profusely strewn. These algæ are gathered and dried for fuel, at the legal harvest time, in March and July, the harvest home being profusely supplied with vraich cakes and bread. The digging and blasting of the quarries of black stone, and the tiny windmills that drain these excavations, give life to the scene as we approach St. Sampson’s.

Martello towers crown several of the brows, and there is within very old walls to the left a little remnant now styled Ivy Castle. It is not worth the visit, although it is a bit of a castle, built by Robert of Normandy, contemporary with that of Jerbourg.

We are close to the archæological gems of the islet,—the churches of St. Sampson and Braye la Ville, or du Val, within a mile of each other, at each end of a flat alluvial isthmus. The first is dated 1111, its name being derived from Sampson, Bishop of St. David’s, consecrated Bishop of Dol under the Duke of Brittany, and endowed with these islets by Childebert of France. He came to Guernsey, and built a chapel here. There are three aisles, with massive pillars and Norman arches; the old gallery-loft and the tower are in exquisite antique. It is profusely covered by most luxuriant ivy with enormous stems.

The steeple of Braye du Val, dated 1117, is very eccentric, immense granitic blocks lying before the belfry-door.

At low water we cross the harbour of St. Sampson’s, Vale, or Du Val, on stepping-stones. The Castle on the mound was erected as a defence against the incursion of the Danes, and then called St. Michael’s, or the Castle of the Archangel. There is a legend imputing its erection chiefly to a band of military monks, who, in a sort of holy pilgrimage, made a descent on the islet.

A Druidical carn lies on the hill, half a mile northward on the left of the road. There are twelve upright and three immense horizontal stones. The largest of these, fifteen feet long and a yard thick, rests on four uprights, the second only on two, the third on the second and the edge of the pit, so that six uprights are unoccupied. From this brow there is a perspective view of the chief objects in the islet, Alderney lying on the horizon to the north-east.

Forts Doyle and Pembroke are on the northern point on either side of Lancresse Bay, the bay of “Anchorage,” in which the Duke of Normandy landed in a storm, as he was sailing over to England to Edward the Confessor.

The shores and bays are here flat and dull; as we leave the Race Course and pass Portinger and Long Port, the upheaved blocks of gneiss increase in number and proportion. In Cobo Bay stands Le Grande Roche; its veins of rose-coloured feldspar are unique. Here and there we have picturesque glimpses—one of the flat islet of Lihou, once hallowed by a priory built in the reign of Henry I., the grouping of cots and walls still in bold relief. The outlying rocklets are profuse between Le Grand Havre on the north and the bold blocks of Les Hanois or Hanoreaux off Pleinmont Point, the west corner of the islet; they completely stud the bays of Port du Fer, Saline, Long Point, Great Cobo, Vazon, Perelle, Le Rie, Rocquaine, the widest bay in Guernsey. It was in Vazon Bay that the Spaniard Yvon de Galles descended and fought the battle in which the islander Jean de Lesoc performed feats of great valour. The site of this conflict is still named La Bataille.