Thor God of Thunder

Niflheim - After destroying the first jade turret, climb the waterfall. Then turn round, jump off and smash the ice barrier. Catch the collectable as it flows downstream.

Vanaheim - After defeating the swamp trolls run around the area charging the four runes.
i) Behind the pyramid structure, below where you enter. ii) Right of the arch, plain view. iii) Left of the arch, after the trees, hidden in the grass. iv)In the area where the swamp trolls came from, plain view. Then follow the guide sphere to the open door on the left side of the pyramid structure. Use the fly point to get onto the pyramid.

Muspelheim - After the forth scorcher fight look for a lava waterfall. Hammer throw the rocks at the top to release the next collectable.

Asgard Besieged - After fighting off the Jotun with hammer throws head to the front right, while looking at the jump point, to find the item.