Banandium Gems 16-18 can be found inside the Thorny Blast Cave Ancient Ruin. To get to the Thorny Blast Cave, you’ll need to blow up the concrete wall in the warehouse underneath the Longneck Plateau Village. Hit the mine embedded in the wall to destroy it and follow the path to find the Thorny Blast Cave.

Get all 60 bananas in Canyon Layer SL300 in Donkey Kong Bananza. Here are all the map locations with tips to find them.

Donkey Kong Bananza has proven to be a hit with Nintendo Switch 2 players who are loving the terrain-deforming gameplay and the chance to collect Banandium Gems – but how many layers are there to unlock?