What is it? A weird maze of underground tunnels first unearthed in 1835 when someone was digging for a pond. And that’s all that’s known.
Why go? We may not know why Margate’s Shell Grotto exists, but thank the seas it does. Was it a temple? Was it a cult’s headquarters? Was it a mosaic obsessive’s life work? You won’t find the answer, but you will spend a mysterious afternoon walking through subterranean spaces whose walls are coated with literally millions of shells. One of the best sights is not in the tunnels, but in fact in the café upstairs. Yup, it’s a T-Rex head made entirely of shells. You’re welcome.