Cache requires you to make some observations in and about the Schuylkill River Boat House Park area.
I'm pretty good with math, even do lots of it for work, but puzzles that require complex calculations in the field throw me. So I'll keep this one simple...
If you can count things, you can find this cache!
Cache is located at:
N 40 06.ABC
W 075 20.DEF
A = Number of park benches around the Upper Merion Boathouse (not bleachers, mind you!)
B = Number of access ramps down to the river pier (a 'double-wide' only counts as one!)
C = Number of posts each gazebo has (that's just for one gazebo)
D = Number of elongated red or blue objects at the Norristown Fish Passage lot
E = Number of purple pigs flying overhead, 2:00EST, third Tuesday of the month (c'mon...it's a gimme!)
F = Number of park benches lined up on the concrete north of the frozen treat establishment.
As always, be aware of muggles...they come and go with some regularity here, especially in the summer months...
Cache is log only, so BYOP.
After your exhaustive research and hunt and, of course, resultant smiley, enjoy a frozen treat from the local establishment...You've earned it!

(Southern chapter!)
Cache On!