Get out for an action-packed day that includes both white water rafting and an underground caving adventure just outside of Melbourne at Wonga park. You'll take on the white water's grade 2 rapids on a 2.5 hour guided adventure before spending two hours exploring the underground caves in the afternoon. Once you meet your guides and the rest of your tour group, you'll be kitted up in safety gear and briefed before setting out on the Yarra River. Tackle a slew of exciting grade 2 rapids, paddling over raging waters and around the twists and turns of the river. Put your white water rafting skills to the test as you take on Bob's Rock and Pinball Rapid.

Then in the afternoon, you'll follow your guide into the unique granite boulder cave, geared up with a torch and safety equipment as you explore the pitch black. Manoeuvre your way around huge granite boulders jumbled on top of each other, wade through subterranean rivers, crawl through some tight spaces, scramble and slide over rocks and climb over chasms in this underground world. 

You'll explore some tight spaces and hidden caverns, so prepare to get wet and muddy as you make the most of this caving adventure. It can be quite physical, but the adventure is worth it. Plus this is an opportunity to see a unique eco-system of glow worms, cave crickets and fungi along the way.