There are many hidden treasure maps in GoW Ragnarok. This God Of War Ragnarok Under The Rainbow Treasure Map Solution Guide will tell you everything you need to know about the Under the Rainbow Treasure Map including where you can find the treasure map and how you can solve it.
You can find the Under the Rainbow Treasure Map in Noatun’s Garden on Vanaheim. When you arrive the garden will be full of monsters and poison plants. There’s a Favour here to remove all of the poison. As you get off the boat here run forwards towards the ruins and then take a left. In the far corner you will see a shiny object on the floor. Pick up this object and you can start the Treasure Map, Under the Rainbow.
God Of War Ragnarok Under The Rainbow Treasure Map Solution Guide
As you are already in this part of Vanaheim you are following Freya’s Favour. This Favour takes you through all new areas of Vanaheim that weren’t in the story part. You will eventually reach Goddess Falls, this is a selection of huge waterfalls where Freya was married. When you arrive here you’ll need to kill some enemies but once they are dead, you can explore.
Climb the rockface up to the next level and grab the chest. As you turn back from the chest you’ll see another wall you can climb. Climb this wall and just as you get to the top, you’ll see a pile of dirt with a golden glow. Loot this pile of dirt to complete the Under the Rainbow Treasure Map.
Lunda's Lost Armor is a Labour objective in GoW Ragnarok. This guide on Where To Find Lunda's Lost Armor In God Of War Ragnarok will tell you where you can find Lunda's Lost Bracers, Lunda's Lost Belt, and Lunda's Lost Cuirass. Once you have all of the pieces you can return to Lunda and have her craft you the armor set, which Kratos can then use and upgrade as if it was his own.
Iouun Apples are used to increase your maximum HP in God Of War Ragnarok. Check out this God Of War Ragnarok Iounn Apple Location Guide to find them all as you are going along. This way you can have more HP and not die as much to the annoying enemies.
Stonewood is one of the many crafting resources required to upgrade your gear. This guide on Where To Find Stonewood In God Of War Ragnarok will tell you how far you need to progress into the game before Stonewood starts becoming available as one of the resources you can collect.
Washed Ashore is another treasure map you can find in Svartalfheim. This God Of War Ragnarok Washed Ashore Treasure Map Guide has everything you need to know about this treasure map including where to find the treasure map itself and where to find the ever important buried treasure that conceals your reward.