Secret Seclusion

Secret Seclusion is the secret island that Donkey Kong, Diddy Kong, Dixie Kong, and Cranky Kong travel to in Donkey Kong Country: Tropical Freeze and the seventh world of the entire game that is unlocked after finding all six ancient relics in the key temple levels in Lost Mangroves, Autumn Heights, Bright Savannah, Sea Breeze Cove, Juicy Jungle, and Donkey Kong Island that are unlocked after collecting all of the K-O-N-G Letters in every level of each world including the levels that can be accessed by entering a secret exit.