ブリエンツ湖
Boat services across Lake Brienz to Brienz and across Lake Thun to Spiez and Thun are operated by the BLS AG. The boats on Lake Thun operate from a quay adjacent to the West station, connected to Lake Thun by the Interlaken ship canal. The boats on Lake Brienz operate from a quay on the Aare by the Ost station. The remainder of the Aare between the two lakes is controlled by several weirs and is not navigable.