This walk is one we found in this book purchased from Amazon.
The walk starts at the National Trust pay and display car park at Tom Gill on the A593 approx. 2 miles north of Coniston.
Tip: If the car park is full or your just to tight to pay there is a large layby about 1/2 mile further north next to Yew Tree Tarn.
From the car park head towards Tom Gill and cross the bridge and follow the sign for Tom Gill, the path heads gently uphill through the woodland alongside Tom Gill.
As the path climbs you catch glimpses of smaller cascades and soon the main waterfall comes into view and the path drops down to the right to a viewpoint of the waterfall.
After the photo stop return to the main path and continue uphill until you reach the gate and go through it.
The instructions in the book say to turn right and follow the path around Tarn Hows upon reaching the far end of the Tarn there is a bridge to cross where the path splits and if you want to follow the walk described in the book you take a path to the right.
We opted to follow the main path and do a lap of the Tarn stopping for a picnic ( as the kids couldn't possibly move another inch without food ) before returning back down the path alongside Tom Gill and to the car park.
At this point you can head right along a path that runs alongside the road towards the big layby mentioned earlier where there is access to a path that goes around Yew Tree Tarn.