Attack the bridge supports and wait for it to collapse. To reach it start from the High Lord Wolnir bonfire and head back to the rickety wooden bridge. This bonfire is technically at the bottom of the Catacombs of Carthus, but it’s close enough to the Smouldering Lake that, for our purposes, it counts as the first bonfire there.
Bonfires at the Smouldering Lake in Dark Souls 3 Abandoned Tomb bonfire in Dark Souls 3 This guide will help you through the area by highlighting key points, but leaves plenty for you to explore on your own.
You’ll be facing a lot of enemies with fire themed attacks, so keep that in mind as you head in, but there are some good items to pick up here, including two pyromancy tomes, so it’s a recommended area for Pyromancers. The Smouldering Lake is a completely optional area of the game that you access via cutting the rope bridge near the end of the Catacombs of Carthus.
