I had a wonderful time boating on Phalen Lake and exploring the park there! Unfortunately, I did not take any photos of the actual lake this time (gasp!), but I did take a bunch of the man-made waterfall at the park. Climbing into the waterfall like I did was clearly NOT recommended by the park, hence the fence. In fact, it may well be against park rules to climb into the waterfall area, so I cannot say that it is either safe or legal to do that, but I did go ahead and do it anyway. I do highly recommend visiting Phalen Lake and at least taking a look at the waterfall, though. It is a lovely park which is often overlooked by Minnesota natives.
Across from the waterfall is a nice sidewalk, but look out for bikers! I almost got hit by speeding bikers twice while I was walking from the lake to the waterfall. Many families come to enjoy the park, but I never felt crowded. There is plenty of space for us all!