FFV: Where’s the Cave of Gilgame?

Hi!
I have less than 3000 gp and the party levels are (if i remember right): 27 27 27 29 (or it was 30?)
last bosses i used Butz for most of the time (99% of it) so I need to make the others strong too.
and now I suppose to be in Exdeath’s Castle to fight against him.
but, I really need to buy more magics and stuff..
According to the walkthrough from this website, this cave has a lot of cash.
…

Quick and dirty way to beat this boss:

Cast "Leviteto" to everyone. Then use "Titan" with all four members of your party. (Ignore the
Earth segment for now) After other three dies, use "Graviga". Earth segment is near death by
now….

21. Cave of Gilgame (not Gilgamesh)

This place is optional and you may skip if you aren’t in need of quick cash. Behind the doors,
you can get 10, 20, 40, 80, 160, 320, 640, 1280, 2560, 5120, 10240, 20480, and 40960
giru, but you’ll encounter the mighty Gilgame with high rate. Gilgame has HP of 32768
(same as Exdeath you’ll meet later) and his weakness is "ice". So use "Mahouken Bulizaga"
to beat him. Golem’s guard will be nullified in 2 rounds or so.

Dirty way to beat Gilgame…. but it’s not quick.

Equip everyone with Gin’yuushijin’s (Bard’s) "Kakureru" (Hide) ability. When you enter
the battle, let everyone hide until Gilgame does "Kame no Koura" (Turtle Shell) twice.
After he has done the "Kame no Koura" attack, surprisingly, Gilgame’s attack won’t hit your party.
I’m sure you know what to do NOW. ; ) [Yes, come out and attack!!]

22. The Climax!?: Exdeath Castle (Party’s Level: 31)
…
where’s the cave? what doors? now I have to come back to the Great Forest of Mua, back to the tree where Galuf died, and look for doors?

thanks,
pex.

Well the acve of gilgame is located in galufs world but i don’t remember the exact location, but in can be seen on the qorld map, also it is very helpful to use golem to protect yourself from gilgame, i think that you’ll get like a 100 000 gil, but you’ll spend the same on making preparations to beat him and making level so don’t get your hopes to high on getting a lot of money, he is very difficult to beat.