Yet another question about traps - now with PIRATES!

[Wraith Form]

Hi. N00b DM here (well, mostly n00b). My players = 2nd level, they've just reached it. Playing in Greyhawk.

I'm looking for some ideas for traps that a pirate would place in a series of sea caves on an uncharted island to guard his booty. Think a D&D-ized version of Pirates / Carribean. Caves are in the side of a cliff, with stairs carved out of the rock leading to the different caves. Pirate is actually a ghost. (Cliché, but that's OK.)

Any suggestions for cool, piratical traps?

 

[EricNoah]

An illusory chest full o' gold, covering a pit full of water?

 

[Wraith Form]

An illusory chest full o' gold, covering a pit full of water?

Ooooooooh, yeah. That gives me some sneaky ideas...! Thanks!

I'd be happy to hear other ideas, if anyone has any--? Thank you!