The recent discovery of an enormous cave hidden beneath Pembroke Castle has the potential to rewrite Britain's prehistory, according to researchers. This hidden gem, known as Wogan Cavern, has already revealed 'extremely rare' evidence of early humans and animals, including the bones of a hippopotamus that roamed Wales 120,000 years ago. What makes this site truly remarkable is its potential to provide a long sequence of human activity, from hunter-gatherers living there immediately after the last Ice Age to Britain's earliest Homo sapiens. Personally, I find it fascinating that this cave, previously assumed to hold little archaeological material, has emerged as one of the most important prehistoric archives in Britain. The University of Aberdeen will lead a five-year exploration of the site, which archaeologists hope could reveal a great deal about our early prehistoric forebears. What makes this discovery particularly intriguing is the possibility of uncovering traces of Neanderthals, who may have occupied the cave even earlier than Homo sapiens. This raises a deeper question: how did Neanderthals and Homo sapiens coexist in the same region, and what impact did their interactions have on the development of early human societies? The bones found in the cave are remarkably well-preserved, which is unusual for sites of this age. This suggests that the environmental conditions within the cave have been stable over the past 100,000 years, providing a unique window into the past. The discovery of hippo bones dating back to the last interglacial period, around 120,000 years ago, is particularly exciting. It implies that the climate and environment of Wales have undergone significant changes over the past 100,000 years, and that early humans and animals were able to adapt to these changes. The project represents an exciting new chapter in the history of Pembroke Castle, which is already a popular tourist attraction and the birthplace of Henry Tudor. The finds from Wogan Cavern will be curated and kept in Pembroke, providing a unique opportunity for the public to engage with Britain's prehistory. However, the discovery also raises important questions about the preservation and interpretation of archaeological sites. How can we ensure that these sites are protected and made accessible to future generations? And how can we use these discoveries to inform our understanding of the past and our present? The new excavations, scheduled to begin at the end of May, will undoubtedly reveal more about the history of Wogan Cavern and the people who once inhabited it. As an expert, I am eager to see the results of this project and to learn more about the fascinating story that lies beneath Pembroke Castle. In my opinion, this discovery is a testament to the power of archaeological research and the importance of preserving and interpreting our past. It reminds us that there is still much to learn about our early ancestors and the world they inhabited. The findings from Wogan Cavern could have a significant impact on our understanding of Britain's prehistory and the development of early human societies. It is a reminder that even in the 21st century, there are still hidden treasures and secrets waiting to be uncovered, and that the past is full of surprises and mysteries that continue to captivate and inspire us.