Toxic caves

The Toxic Caves are north of Klamath. Before the war it was a military warehouse of some sort. Now it's a radioactive cave inhabited by Geckos (little and gold, though mostly gold).Smiley, the trapper from Klamath, is waiting at the end of the second level for you to save him.

The only safe way to cross the green sludge, is by using Rubber Boots, which can be found on the first level on the caves, and in Trapper Town. The boots will melt after a while though. Without the boots each step in the sludge caused 2 damage.

Some decent equipment can be found here provided that you have a set of Electronic Lockpicks and high repair skills, which you probably wont have when you first arrive here to rescue Smiley. Be wary of the security robot that resides here, who will attack with rocket launchers as soon as you go down the elevator to the 3rd level. Strangely, the Electronic Lockpick Mk II doesn't work for this.

Ardin Buckner will put the Toxic Caves on your map when you get the Save Smiley from toxic caves quest.