I'm down in a cave and got trapped behind some stalagmites and cannot get out.

Cannot move.

Spent 15 minutes trying to get free and then just shut the game off.

Help.

Reload your last save?

I had a similar experience in the bog NW of Oxenford. Was walking along and got stuck in a small deep pool of water. Could not jump, climb or swim as it was to small and not allowed. Had to reload a save game.

I also had a similar experience, only I got trapped inside an internal wall in a house: climbed into the rafters looking for something, and fell down. Absolutely no way out. Had to reload.

Got trapped in the first village between wall and thatched roof, so I save frequently since it happened...
Try to jump in every direction possible. and try to destroy stalgmites with your sword

When I went back into the game I had apparently been killed ( somehow -- no monsters were around when I got stuck ) and it started with my last save --- which worked out ok.

Hm, once stuck in a "puddle", at western crossing of a Pontar. Impossible to jump or climb over. And Roach didn't came closer. Duh pain from reloading a save made like 30 minutes ago...
Another case was near... "Redoran" estate:) (misname on purpose), on attempt to jump across fence, Roach dropped Geralt and they both stuck in mid-air. Hilarious image.

Aard? Perhaps those ones are weak?

Some are indestructible.

LMAO!! Which is why I make 2-3 save files just in case for some reason I get stuck in a physical location, accidently sell of an item, get stuck in a high level mission where the damn monster is literally chasing me across the map. That's me;)