etak is a word of Micronesian origin for a distinctive cognitive and mnemonic approach to oceanic navigation and orientation involving a notional reference point or "island", called etak, and triangulation based on it. The system under that name was found in the Caroline Islands, and the literal meaning of etak is "refuge". Alfred Gell described it as a way of encoding dead reckoning applied to sea journeys.[1] It is an example of a dynamic cognitive map.[2]