They found the swamp easily enough by following the smell that it emitted.
San Zhe was the only one unaffected by the smell of it as Cheng Xiu had to clip her nose to not breathe the toxins in and Chu Ying had ended up puking.
It was at that moment that Chu Ying realised she was pampered by the guild members she usually worked with. The last time that she was here, the witch in their group had created a spell that dispelled the air around them and she had no time to realise the true horror that she had escaped.
It made her realise why so many people wanted to wait of the maximum of 10 people before they entered the instances. It was not just that the monsters were hard to fight. Even the environment that said monsters were found in were difficult to traverse.