Shu Gate, Qingcheng solo snake dungeon. Qingcheng players at level 30 with even bad equipment can go and do this dungeon. I had 1200 HP and 1400 defense, wielding a dagger. I went in with Level 2 Combat Red, and also brought the living skill to instantly recover over 600 HP, which you can make yourself or buy a few cheap ones if available. Don't bother killing the Two-Headed Snake, go straight to the山顶 (mountaintop) Boss to start. When fighting the Boss, immediately activate the 15-second evasion skill (it’s maxed out at 20 seconds). This Boss is very weak and can be taken down in a few hits. Then head downhill to fight the third Boss. After talking to the Boss, move to the stairs where the small monsters will spawn; lure them far away from the spawn point before killing them. Don’t fight at the spawn point. Kill the minions first, then the captain. After that, fully restore your HP and return to kill the Boss. Doing this with my poor equipment was somewhat risky.