Route suggestion: Patterdale - Rooking - Boredale Hause - Round How - Place Fell
1.9 mile / approx 1700 ft ascent
This is the route I've used to ascend Place Fell more than any other. Mainly because it's much easier for me to get to Patterdale than the Sandwick / Martindale side of the fell. Regardless of the reason, this is always an enjoyable route to walk with some fine viewpoints down to Ullswater and Glenridding.
If you're new to the area, Boredale Hause can be a little confusing at first. My advice is to ignore the confusion of paths, find the sheepfold next to Stonebarrow Beck, walk a short way past it without crossing the beck, and then turn left. This should take you onto the path leading up to Place Fell itself.