[Illustration: +The four guns of the "Friedriechsart" Battery.+] _Return to the road and before crossing the canal take the road on the left which leads close to where the "Intrepid" and "Iphigenia" still lie._ The work of clearing the entrance to the canal has begun. [Illustration] _Cross the =Bruges Canal= by the locks, and proceed to =Zeebrugge= (2 kms.)_, an important town which grew up around the port. On the left, in the cemetery behind the church, are the graves of several of the British who were killed in the expedition against Zeebrugge _(photo, p. 80)_, and of the aviators who were brought down in the neighbourhood. [Illustration: +The "Friedriechsart" Battery. One of the guns in casemate, and shelters.+] _On leaving Zeebrugge, notice the ="Friedriechsart" Battery=_, on the right armed with four 6½in. naval guns in closed turrets, turning on circular rail tracks mounted on concrete platforms. Between the guns are ammunition shelters connected with the guns by lifts, as on a battleship. In front are infantry defence-works which extend on both sides as far as the Bruges and Leopold Canals. [Illustration: +The "Freya" Battery.+ _On the left: Heyst-sur-Mer. On the skyline: Zeebrugge Mole._] _Cross the Léopold Canal; immediately beyond, on the left, is the ="Kanal B" Battery=_, armed with 3½in. guns, and on the right a battery of 3in. anti-aircraft guns. [Illustration: _+"Augusta" Battery+ situated between the "Freya" Battery and Duinbergen, the first houses of which are seen in the photo. In the inset: One of the battery's guns._] [Illustration: +Duinbergen.+ _A, B and C: German Observation-Posts on the house-tops. (Seen from the observation-post on the Dune reached by following the arrow shown in the lower half of photo)._] _Continuing along the road, the tourist next reaches =Heyst-sur-Mer= (2 kms.) skirting the hotels and villas on the dike. Beyond the last houses of Heyst, on the right, is the ="Freya" Battery=_, armed with four 8in. protected long-range guns, on circular concrete platforms. Between the left-hand gun and Heyst are two large ammunition shelters; the gunners' shelters are behind. This battery is prolonged by the ="Augusta" Battery=, armed with three 6in. guns on concrete platforms. There is a searchlight on the dike in front of the two batteries. [Illustration: +Kaiser-Wilhelm II Battery+, _to the west of Knocke (seen in the upper half of photo). Lower photo: the entrance to the battery, near the windmill._] _The road next passes through =Duinbergen= (1½ kms.)_, where the Germans had observation-posts on the roofs of three houses. _In the village, turn to the right, at the corner of Pauwers Hôtel (photo, p. 84) coming out behind the square which stretches as far as the dike, near_ a concrete observation-post, built on the top of a high dune, and commanding a fine view over the sea _(Photo, p. 84)_.