There is no better way to explore Ljubljana on your stag do than by taking a bike tour. But this isn't just any old bike tour; your group will have this opportunity to cycle through and around the city's abandoned mine tunnels and caves. As always, safety comes first. You and your group will be guided around the caves by a professional instructor, who will be there to ensure your safety with helmets and torches. But this is a cave we are talking about, so get ready for a bumpy ride!