You're likely referring to Baffin Island, which is located in the Canadian Arctic Archipelago in the North Atlantic Ocean.

Here's how to find it on a world map:

1. Locate North America: Find the continent of North America on the map.

2. Find Canada: Locate Canada within North America.

3. Look for the Arctic: Focus on the northernmost part of Canada, where the Arctic Ocean lies.

4. Find Baffin Island: Baffin Island is the largest island in the Canadian Arctic Archipelago, and is located east of the mainland of Canada.

You can use an online map or a physical atlas to find it.