Marsh Cave (Map) – Final Fantasy Pixel Remaster

Marsh Cave

A 680 gil (The item is shared with the treasure chest D.)
B Broad Sword (The item is shared with the treasure chest F, G.)
C 620Gil
D Dagger
E 680 gil (The item is shared with the treasure chest A.)
F Broad Sword (The item is shared with the treasure chest B, G.)
G Broad Sword (The item is shared with the treasure chest B, F.)
H Pheonix Down (The item is shared with the treasure chest K, O.)
I Copper Armlet
J Cottage
K Pheonix Down (The item is shared with the treasure chest H, O.)
L Crown
M 385 Gil
N 295 Gil
O Pheonix Down (The item is shared with the treasure chest H, K.)
P Silver Armlet
Q Antidote
R 1020 Gil
RouteExit > 2 > 3

You need Mystic Key to obtain treasure chests P, Q, and R.