That would still put you on the south side.
Its more than that
Tres Cocos is a Geographic Anomaly on the southern tip of Ambergris Caye. As you approach the area with a compass the needle begins to spin wildly.
They have Woolly Mammoth and penguin. It’s as if Rod Sterling has just introduced the community as being in a warp.'You unlock this door with the key of imagination. Beyond it is another dimension - a dimension of sound, of sight, of mind. You're moving into a land of both shadow and substance, of things and ideas. You've just crossed over into...da da da dum Tres Cocos Zone
". The residents walk around with an odd smile talking about being on North Ambergris Caye. The houses are suspiciously absent of maps for fear there children will discover they are on the Southern tip of the Island. They put signs up saying ‘North Ambergris Caye’ and even have there phones listed as being in the North. They advertise to the outside world as being on North Ambergris Caye and name there business and neighbor associations names prefixed with ‘North’. It s a paradox situation which defies logic. Geologist and psychologist studying the area theorize the land mass under Tres Cocos is part of the Chicxulub meteor that struck 65 million years ago ending the era of dinosaurs on earth, and that radiation influences from the meteor along with and escaping gasses from the bedrock of the continental crust have caused humans living above it ( in Tres Cocos) to display some unusually symptoms and behavior such as obsessive directional impairment dysfunctions, sweaty palms and frequent urination..
Tourist visiting Tres Cocos are completely indoctrinated by the farce perpetrated by its residents and leave feeling and talking as if they really spent there vacation on North Ambergris Caye.