sigh, i gave a list of all the trinities in another help thread that needed help with these. here it is again.
here you go keybladekid. i got you the whole list of trinty mark locations. enjoy!
BLUE TRINITY JUMP
1. Traverse Town "First District" In front of the cafe in the First District.
2. Traverse Town "First District" Just to the right of the entrance from where
you come in through from the Gummi Ship.
3. Traverse Town "Third District" On the top of the flight of stairs in the
corner of the district.
4. Traverse Town "Mystical House" Inside the house.
5. Wonderland "Lotus Forest" After getting the evidence for Alice, go back
into Lotus Forest.
6. Wonderland "Lotus Forest" In the small area in the right of the forest.
7. Olympus Coliseum "Coliseum Gates" The left platform in front of the statue.
8. Olympus Coliseum "Coliseum Gates" The right platform in front of the
statue.
9. Deep Jungle "Climbing Trees" On the platform in front of the way to the
Tree House
10. Deep Jungle "Camp" Near the boxes of stuff.
11. Agrabah "Silent Chamber" On the platform with the stairs.
12. Agrabah "Bazaar"
13. Monstro "Mouth" On the platform after the water lowers.
14. Monstro "Chamber 5" In the centre of the chamber.
15. Monstro "Throat" On the lowest floor.
16. Hollow Bastion "Dungeon" In the middle of the room.
17. Hollow Bastion "Castle Gates" As you arrive from the elevator.
RED TRINITY SMASH
1. Traverse Town "First District" In the alley next to the Item Shop.
2. Traverse Town "Alley" In front of the grate in the water.
3. Traverse Town "Second District" On the roof of the Gizmo Shop.
4. Agrabah "Treasure Room" In front of the pillar.
5.*Halloween Town "Oogie's Manor" In the first room you enter with the torch.
It's to the right of the entrance.
6. Hollow Bastion "Entrance Hall" In front of one of the statues on the second
floor.
*The Red Trinity Smash in Oogie's Manor. If you don't get this trinity and
defeat Oogie you won't be able to get it again.
GREEN TRINITY LADDER
1. Traverse Town "Accessories Shop" Next to the table.
2. Wonderland "Bizarre Room" In the fireplace.
3. Wonderland "Rabbit Hole" Behind the Save Point.
4. Olympus Coliseum "Coliseum Gates" On the left of the entrance in front of
the ranking posters.
5. Deep Jungle "Treetop" In the centre, it hard to see.
6. Agrabah "Storeroom" Near the Save Point.
7. Monstro "Mouth" On the roof of the ship hull Geppetto lives in.
8. Neverland "Hold" The room with the Save Point.
9. Hollow Bastion "Library" In front of one of the shelves on the second
floor.
YELLOW TRINITY PUSH
1. Traverse Town "Mystical House" Behind the Mystical House.
2. Olympus Coliseum "Lobby" Next to the block.
3. Agrabah "Bottomless Hall" In front of a large pot.
4. Neverland "Hold" In front of the door leading to the left.
WHITE TRINITY DETECT
1. Traverse Town "Sewers" Near where Aerith stands.
2. Wonderland "Lotus Forest" Get in the side of the Bizarre Room and jump into
the painting where you will be in a new area.
3. Olympus Coliseum "Coliseum Gates" In the centre of the area.
4. Deep Jungle "Cavern of Hearts" In the room where you locked Deep Jungle.
5. Agrabah "Cave of Wonders" On the left when you first entered.
6. Monstro "Chamber 6" On the lowest part of ground.
7. Atlantica "Triton's Palace" In the little cave thing in the centre.
8. Halloween Town "Moonlight Hill" Left of the entrance.
9. Neverland "Pirate Ship" On the deck.
10. Hollow Bastion "Rising Falls" On the platform where you met Riku.