As departure drew near, provisioning for the next stage became a serious business, as, with the exception of a few depots for shipwrecked mariners, there was no possibility of obtaining anything after we sailed, before we reached our Chilean destination of Talcahuano. S.’s work was more simple, as he had only to fill up to the greatest extent with coal and oil, knowing that at the worst the channels provide plenty of wood and water. The next few weeks, when we traversed the remainder of the Magellan Straits and the Patagonian Channels, were the most fascinating part of the voyage. The whole of this portion of South America is a bewildering labyrinth of waterways and islands; fresh passages open up from every point of view, till the voyager longs to see what is round the corner, not in one direction, but in all. It has, too, much of the charm of the unknown: such charts as exist have been made principally by four English men-of-war at different periods, the earliest being that of the _Beagle_, in the celebrated voyage in which Darwin took part. A large portion of the ways and inlets are, however, entirely unexplored. The effect of both straits and channels is best imagined by picturing a Switzerland into whose valleys and gorges the sea has been let in; above tower snow-clad peaks, while below precipices, clothed with beautiful verdure, go straight down to the water’s edge. The simile of a sea-invaded Alps is indeed fairly accurate, for this is the tail of the Andes which has been partially submerged. The mountains do not rise above 5,000 feet, but the full benefit of the height is obtained as they are seen from the sea-level. The permanent snow-line is at about 1,200 feet. The depths are very great, being in some places as much as 4,000 feet, and the only places where it is possible to anchor are in certain little harbours where there is a break in the wall of rock. These anchorages lie anything from five miles to twenty or thirty miles apart, and as it was impossible to travel at night it was essential to reach one of them before dark. If for any reason it did not prove feasible to accomplish the necessary distance, there was no option but to turn back in time to reach the last resting-place before daylight failed, and start again on the next suitable day. On the other hand, when things were propitious, we were able on occasion to reach an even further harbour than the one which had been planned.