There are three walks that you can do in this part of the Warrandyte State Park - Black Flat Walk, Blue Tongue Bend and the Jumping Creek Nature Trail (see link above for Jumping Creek Nature Trail, which also gives you an idea of the flora and fauna in the area).
The walks are clearly sign-posted along the way. If you're taking the Blue Tongue Bend route, simply follow the dirt track to the right of the picnic area.
The dirt track takes you along the river, where you can dip your toes in the water (or go canoeing/kayaking).
The direct track itself is easy to follow and has a few steep sections. It can be a little muddy and slippery if walking after recent rains or in otherwise damp conditions so make sure you have appropriate footwear.
You can either return by retracing your steps, or taking the vehicle track (a shorter route but less scenic, also has steep sections).
The picnic ground is gorgeous, with barbeques, firewood and toilets.
* Please note that DOGS ARE NOT PERMITTED in Blue Tongue Bend Reserve. See this link if you'd like to find dog-friendly parks in Nillumbik -> Dog rules, Nillumbik
Start off by having a look at the information board to orientate yourself. There are public toilets, barbeque and picnic tables here.
Yarra River is a great spot for a dip on a warm day. You'll be sharing the river with the ducks and other bird life! You can launch your canoes from here.
Marker for the start of the Blue Tongue Bend Walk. Only a couple of kilometres of blissful bushland to wander through.
Take a sniff or two of the fresh air around you.
You'll be able to glimpse the river from the track at various sections.
Q: Did you hear the joke about the fungus? A: I could tell it to you, but it might need time to grow on you.
Q: Why did the Fungi leave the party? A: There wasn't mushroom.
Q: Why did the Mushroom get invited to all the parties? A: 'Cos he's a fungi!
Ok, I've run out of fungi jokes. This one's the biggest that I came across during the walk.
A perfect location to practice your camera taking skills, or simply enjoy the light and shadows.
There are occasional uphills and downhills on the track, perfectly manageable - just distract yourself with the scenery while you make your way up.
Group of fungi last seen making their own stairway to heaven.