Adapted from the following post:
https://gamefaqs.gamespot.com/boards/197483-grandia/534571061) Squid boss on the ship - you can't miss this
2) Merill Rd
South/west past the fork that leads to Feena's house
3) Underground Sewers
Bottom floor, follow SE stairs to 150G then NE tunnel to egg. Sorry for the crappy description on this one, but if you know it's there, there aren't too many places to look.
4 5) Rangle Mountains
4-North path in West section after a narrow pass.
5-East section, follow the wall anticlockwise from dom ruins exit
6) Dom Ruins
Far side of chasm, northmost path close to chasm. It's in a side-room from one of the chambers
7 8) Valley of Flying Dragon
7-Section3 South of Gadwin's house, next to a spiral staircase plant
8-Section 4 turn right past an outcrop of trees. Along treeline before Dight village.
9) Mt Typhoon
Far northwest of the map, in a corner across the river
10) Typhoon Tower
First floor, left from the entrance past the save point. Back of a room.
11) Volcano
South of the save point
12) Petrified Forest
SE of a path from the East exit of the old village
13) **CASTLE OF DREAMS** - optional area
Cafeteria (north of entrance along left wall)
14 15) Savanna Wilderness
14-West section, As soon as you enter, run directly east from the map point
15-East section, directly south of the exit to the Brinan Plateau
16) Abandoned Laine Village
Area 2 (with the light blue platforms).
From the save point, turn right at the Y intersection, right again at the X intersection and then follow the right-hand edge of the path around 2 corners.
17) Zil Padon ruins section 4 (turn right from the entrance)
After the golems keep going until you can turn left at an intersection. Follow the left wall once you are on the ground.
18) Alent
Before the save point. Hard to miss, but worthless by this point.