Jenolan is Australia’s most awe-inspiring cave system and is amongst the world’s finest. There are 10 different cave tours on offer, with night tours, underground performances, adventure caving and bush walks for all abilities. In 2006, it was confirmed that this is the world’s oldest cave system – 340 million years! Here are three of the best cave tours on offer: Lucas. This is the most visited cave here, and it’s easy to see why, there are the most spectacular views of the limestone formations. It takes approximately 90 minutes, and with over 900 steps to take to get to see it, its fitness level has been rated ‘hard’ so you must be physically ready to go and see it. Chifley. This is the cave where you’ll find all the breath taking limestone formations, one of Jenolan’s best examples of exquisite ‘spar’ crystal can also be seen here. It takes approximately 60 minutes, and with over 400 steps to take to get to see it, it’s fitness level has been rated ‘average’ so it’s suitable for all abilities to experience. Imperial. The Imperial Cave follows an ancient river passage, where you can see marine fossils embedded along the walls. It takes approximately 60 minutes, and with over 350 steps to take to get to see it, it’s fitness level has been red ‘easy’ so everyone can see it! The usual price for this is AU$32/Adult and AU$22/Child. Check out all the details, as well as the benefits you can get at sydney.iventurecard.com. Then you can start planning your trip today! Tickets to this are included in the iVenture Sydney Flexi Attractions Pass and Sydney Unlimited Attractions Pass– just one of the many experiences on offer to you. See more and save with an iVenture Card.