Santorini is one of the most popular tourist destinations in Europe, but the Greek island is currently dealing with a dangerous crisis that you want to avoid.

The Greek island of Santorini is being rattled by dozens of tremors, prompting authorities to close schools and airlines to announce additional flights on Monday to help people leave the popular tourist destination.

Santorini, often called Greece’s "Instagram Island," is famous for its whitewashed buildings and breathtaking caldera, a volcanic crater created by one of the largest known eruptions around 3,600 years ago.