@ludist210I'm around the same spot, although a little further. Some tips--
-Make sure you have both Franklin Badges. If so, make sure Ana's holding one. Ana gets Super Healing at a fairly low/reasonable level, and that's the only way to revive people, so her safety is your utmost concern.
-H20 Pendants are the most useful ones since Fire spells (and explosions) are devastating.
-BREAD! Okay, so each party member can have their own Crumbs trail as it turns out. What you want to do is have Ninten (or whoever) USE Bread in town (Ellay, or maybe Podunk since the hospital is cheap there). If you reach the cliffs again, have someone use Bread there too. Once someone in your party gets KO'ed (like Ana), simply use the appropriate Crumbs to warp back to town and heal up. Then you can simply use the other Crumbs to instantly warp back to the cliffs! If you want to be extra safe, bring some extra Bread with you and restore the warp points you use so you can do it again next time you need instant healing. Makes the trek much simpler.
-Don't be afraid to run. Legend has it that this part of the game wasn't playtested, so the enemies are way stronger than they should be. They also leave kinda middling EXP for how difficult they are, so you aren't missing out on much if you duck out on a lot of the battles. Each party member has the option to Run, and each one has about a 50/50 chance of getting the whole team out of there, so it works pretty well. Ninten's 4th-D Slip PSI power is an automatic success in running, which is good insurance. Although it does use 16 PP, so keep that in mind.
-The caves only have two enemies, Blue Starman and Cerebrum. Blue Starmen don't have much HP but can use Beam Gamma (which OHKOs). If you have two Franklin Badges, this often means it'll reflect back into the caster and kill him, but it'll sometimes get your guy who doesn't have it. Cerebrums throw a ton of PSI at you and are hugely annoying, but Ana's PSI-Block makes them harmless. If you need to restore your resources, you can PSI-Block a Cerebrum and then just siphon PP out of him by using PSI Magnet each turn, and there ain't nothin' he can do about it.
-The cliff enemies are mostly all very tough. Stay healed and stay frosty. If you see a Grizzly Bear, RUN. DO NOT FIGHT IT. It can wipe out your entire party surprisingly quickly, and even deals over 200 damage as a dying attack after you kill it!
-If Ana has PSI Freeze Gamma by now, be sure to use it. It works all the time and instantly brings a creature down to below 20 HP. A rather nifty PSI power for sure.
-You'll reach a small house on Mt. Itoi soon. Make sure you leave Crumbs right outside of it before heading in! Trust me on this one.