Ancient people relied on coastal environments to survive the Last Glacial Maximum

Excavations on the south coast of South Africa have uncovered evidence of human occupations from the end of the last ice age, approximately 35,000 years ago, through the complex transition to the modern time, known as the Holocene and adaptions that were key to our species ability to survive wide climate and environmental fluctuations.

source https://www.sciencedaily.com/releases/2020/11/201123173450.htm