The Swedish troops were concentrated in Nyborg and Svendborg, the starting points for a continued march across to Zealand and Lolland, respectively. Outside Nyborg, Adjutant General Arensdorff and Lieutenant Colonel Georg Henrik Lybecker investigated the ice conditions to Korsør on the Zealand side. Erik Dahlbergh led the investigations along the Svendborg route through Langeland and across to Lolland. Through their superiors, Wrangel and Berendes, the king received continuous reports about the ice conditions. On 1 February, Wrangel reported a rumor to the king that the ice could carry them all the way out to Tåsinge between Funen and Langeland. The king was eager to cross the ice to Langeland, but he began to despair after receiving reports that the current between Langeland and Lolland obstructed ice formation. The frost had now taken hold of the Danish islands, and on 2 February, Lubecker reported that the ice between Nyborg and Sprogø was sufficiently strong, but on the other side of Sprogø, the ice was too thin to carry an entire army. On 3 February, Charles X Gustav moved from Dalum back to the mayor's manor in Odense. Since 1 February, the king had been waiting impatiently for a report from Berendes and Dahlbergh on the ice conditions across to Langeland.