=Castle Rock= (C. sh. 64).--This rock in _Borrowdale_ is said to have been crowned by a Roman fort. The west side is craggy for a couple of hundred feet. It may serve to occupy a few odd hours for any one stopping at _Grange_, _Rosthwaite_, or _Seatoller_. =Caw Fell= (C. sh. 73).--The name is possibly the same as _Calf_, _Calva_; compare also _Caudale_, _Codale_, &c. On the north side there is a craggy bit about 200 ft. high. =Chalk.=--Though this can hardly be regarded as a good rock for climbing, much excellent practice can be gained on it. As a general rule, it is only sufficiently solid for real climbing for the first twenty feet above high-water mark, though here and there forty feet of fairly trustworthy rock may be found. These sections of hard chalk are invariably those which at their base are washed by the sea at high tide; all others are soft and crumbly. [Illustration: CHALK CLIFFS NEAR DOVER] Whilst any considerable ascent, other than up the extremely steep slopes of grass which sometimes clothes the gullies and faces, is out of the question, traverses of great interest and no slight difficulty are frequently possible for considerable distances. A good _objectif_ may be found in the endeavour to work out a route to the various small beaches that are cut off from the outer world by the high tide and cliffs. The best instances of this sort of work are to be found along the coast to the eastward of Dover (between that town and St. Margaret's). Between the ledges by which these traverses are in the main effected, and the beach below, scrambles of every variety of difficulty may be found, some being amongst the hardest _mauvais pas_ with which I am acquainted. Owing to the proximity of the ground, they afford the climber an excellent opportunity of ascertaining the upper limit of his powers. Such knowledge is a possession of extreme value, yet in most other places it is undesirable to ascertain it too closely. Chalk, it must be remembered, is extremely rotten and treacherous, very considerable masses coming away occasionally with a comparatively slight pull. In any place where a slip is not desirable, it is unwise to depend exclusively on a single hold, as even the hardest and firmest knobs, that have stood the test of years, give way suddenly without any apparent reason. The flints imbedded in the chalk are similarly untrustworthy; in fact, if they project more than an inch or so, they are, as a rule, insecure. The surface of the chalk is smooth and slimy if wet, dusty if dry, and does not afford the excellent hold obtained on granite. As a whole it may be regarded as a treacherous and difficult medium, and one which is likely to lead those practising on it to be very careful climbers.