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The Canyon Layer has 80 Banandium Gems across three sub-layers: SL300, SL301, and SL302. Most can be collected on your first visit, but some require clearing Canyon’s main mission and returning; one is available only after the credits. Use the sub-layer routes below to find the gems, including hidden rooms, challenge rewards, and the post-game collectible.
Where are all the Banandium Gems in the Canyon Layer?
Nintendo Life’s Canyon guide lists 60 gems in SL300, 19 in SL301, and one in SL302, for 80 in total. Nintendo’s official terminology for DK’s familiar golden bananas is “Banandium Gems.” They can be hidden in terrain or awarded for completing Ruin challenges. Collecting them grants Skill Points, which can be used to improve health or power and learn skills. See Nintendo’s game overview for more on the collectible mechanics.
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The routes below preserve the game’s collectible names. For the complete numbered list, maps, and directions for every entry, consult Nintendo Life’s Canyon Layer guide. The directions here cover the finds for which detailed route information is available.
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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsSL300: Canyon arrival, Tallfall Cliffs, and Longneck Plateau Village
Starting area and Tallfall Cliffs
- Tumbled into the Canyon Layer! — On the ground immediately in front of DK when he lands.
- Behind Tallfall Cliffs — At the Tallfall Cliffs checkpoint, punch down into the lower room and break through the wall at its back.
- Hanging in the Cliffs — Take the left-hand door from the Tallfall Cliffs checkpoint, drop to the nearby platform, and check the ceiling in the next room.
- Scenic Smokestack View — Climb the ladder in the Tallfall Cliffs tower checkpoint.
- Shifty Smash: Cliff Valley — Complete the challenge above the Tallfall Cliffs mine-cart exit.
- Growing from the Stone Wall — Look on the metal banana overhang at the end of Tallfall Cliffs.
- Buried in Tallfall Cliffs — Enter the tunnel on the right side of the starting area, near the mine-cart exit. Use Hand Slap near the base of the smokestack.
Mine-cart route and hidden rooms
- Unpilfered Potassium — After the first mine-cart ride, search the lower floor of the house on the right.
- Stuck in a Side Cave — After the first mine-cart tunnel, climb over the cliff to the right and enter the small cave below.
- Pay Dirt under the Plateau — From the tunnel exit, go left over a small wall. Break the concrete floor with a Boom Rock or Kong Bananza.
Longneck Plateau Village and its surroundings
- Battle: Exploding Pork Platoon — Complete the Squeeloid x10 Battle Ruins in the cave by the ladder south of the Longneck Plateau Village checkpoint.
- Spinning in the Stone Pillar — Inspect the rotating stone pillar beside the village Style Shop.
- High Shelf Down Below — Speak to the Fractone near the village Stuff Shop, follow the marker, then use Chunk Jump to reach the storage-facility platform.
- Mine Your Step and Kaboom the Hidden Room — Enter the Thorny Blast Cave challenge from the storage facility. Work through the thorn and bomb sections; use Chunk Jump and a mid-air roll to reach the hidden room.
- An Underground Guide — Punch the eel in a corner of the storage facility, follow the tunnel it reveals, and punch through the wall at the end.
- Canyon Fragmentone Recovery / Restoration — Return a nearby fragment, then rescue the remaining fragments by creating a bridge or staircase route.
- Unplundered Produce — Pull up the large turnip in the house behind the village Warp Gong.
- Wrecked by Kong Bananza and Quickly with Kong Bananza — Unlock the City Smash Challenge Ruins through Constructone and demolish the building. For the second gem, finish with 20 seconds remaining.
SL300 contains more gems than the directions listed here. Use the numbered list and map in Nintendo Life’s full guide for the remaining SL300 finds rather than relying on these selected routes alone.
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SL301: Refinery Depths
SL301 has 19 listed gems. The known entries include a Grumpy Kong reward, battle challenges, a hidden refinery hallway, staff dormitory finds, laser-zone finds, and the Mad Mixer reward. The available route information does not provide complete item-by-item directions for this sub-layer, so use Nintendo Life’s SL301 map and numbered instructions for exact paths instead of guessing at room or obstacle details.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.SL302: the post-credits gem
Decked Out in Helmets
This is the Canyon’s only listed SL302 gem and requires post-game progress. After the credits, equip DK with the Mining Helmet and Pauline with the Gold Mining Gear, then speak to Glamtone beside the Sinkhole. The Super Mario Wiki’s cross-check also marks this find as available after defeating King K. Rool in New Donk City: its Canyon Layer list.
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How to approach the Canyon gem hunt
- Check ceilings, walls, floors, and nearby structures: several Canyon gems are concealed in rooms or terrain rather than sitting in the open.
- Pay attention to challenge entrances and NPCs. Some rewards come from Ruins or tasks instead of ordinary exploration.
- If a gem or task is unavailable, continue the main Canyon mission and return later; the guide notes that some finds require that progress.
- Leave the SL302 helmet task until after the credits, when the required gear and Glamtone interaction are available.
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