Complex sentence: The Penguin Islands are a group of mostly scattered islands and rocks situated along a stretch of along the coastline of Namibia, which formally lists them as the "Off-Shore islands".
Split into simpler sentences: The Penguin Islands are a group of mostly scattered islands and rocks situated along a stretch of along the coastline of Namibia. Not forming a geographic whole, the Namibian government formally lists them as the "Off-Shore islands".