To increase the difficulty, the Danes had removed or misplaced the buoys. That same night Lord Nelson himself, accompanied by Captain Brisbane and some others, proceeded to sound and buoy the outer channel, a narrow passage lying between the Island of Saltholm and the Middle Ground. This was a very difficult and fatiguing duty, but was duly accomplished.
An attack from the eastward was at first contemplated; but a second examination of the Danish position, on the next day, as well as a favorable change in the wind, determined Nelson to commence operations from the southward.
On the morning of the 1st of April the British fleet weighed anchor, and soon came to again to the northwest of the Middle Ground, a shoal that extends along the whole sea front of the City of Copenhagen, leaving an intervening channel of deep water, called the Konigstiéfe, about three-quarters of a mile wide. In this channel, close to the town, the Danes had moored their block-ships, radeaus, praams (or armed lighters), and other gun-vessels. In the course of the forenoon Lord Nelson reconnoitred, for the last time, the position he was about to attack; and upon his return, about one in the afternoon, the signal to weigh appeared at the Elephant’s mast-head, and the division set sail, with a light and favorable wind. Nelson had, in addition to his force already given, been joined by one 28, two 24s, and two 18-gun sloops, making his whole force to consist of thirty-two sail, large and small.
Captain Riou led, in the Amazon, 38, and the ships entered the upper channel, and coasted along the edge of the Middle Ground, until they reached and partly rounded the southern extremity. Here they anchored, about eight o’clock in the evening, just as it grew dark; and they were then about two miles from the southernmost ship of the Danish line of defence.
The same northwesterly wind that had been fair for passing along the outer channel, was now as foul for advancing by the inner one. It was also necessary to wait for daylight, in such intricate navigation. The night was passed in taking soundings, and the depth was ascertained, up to the Danish line.
The additional vessels, consisting of seven bomb-ships, two fire-ships, and six gun-brigs were brought in; and then there was nothing to do but wait until morning, as the few shells thrown by the Danes burst harmlessly.
We must now look at the Danish force. It consisted of eighteen vessels, of different kinds. Some old and dismantled two-decked ships, frigates, praams and radeaus, mounting, altogether, 628 guns, were moored in a line of about a mile in extent. These were flanked at the north end, or that nearest the town, by two artificial islands, called the Trekroner batteries, one of thirty 24-pounders, and the other of thirty-eight 36-pounders, with furnaces for heating shot; and both of them commanded by two two-decked block-ships.
The entrance to the docks and harbor, in the heart of the city, was protected by a chain, and by batteries; while, in addition, the 74-gun ships Dannemark and Trekroner, a frigate, and some large gun-vessels (some of them with furnaces for hot shot), were moored about the harbor’s mouth. Several batteries were built along the shore of Amaag Island, to the southward of the floating line of defence; while the indignant Danes flocked to man the works, animated by the desire to repel the invaders by every possible means.
Morning dawned, on the second of April, with a southeasterly wind, which was favorable to the English. As soon as signals could be seen, one was made for all Captains to repair on board the flag-ship, when their stations were assigned them. The line-of-battle ships were intended to anchor by the stern, abreast of the vessels of the enemy’s line. Most of the frigates and the fire-ships were to operate against the vessels at the harbor’s mouth. The bomb-vessels were to take their stations outside the British line, so as to throw their shells over it; while two frigates and some gun-vessels and brigs were to take a position for raking the southern extremity of the Danish line. The 49th English Regiment, which was on board some of the vessels, and five hundred seamen, under Captain Freemantle, of the Ganges, were intended, at the proper time, to storm the principal of the Trekroner batteries. Of course this was to be when the ships had silenced its fire.
By nine o’clock everything was ready; a silence reigned before the storm began, and “the stoutest held their breath for a time.”