Big slide. Photo by Rob Bellinger.

Greg Cook explains what makes Chuckie Harris Park, which opened yesterday, different:

By building the slides into the hills at Harris Park, GroundView makes them handicapped accessible. And climbing back to the top of the slide is made into an adventure by asking children to scale the hill with climbing grips or aided by rope. To welcome a variety of ages, two of the park's four swings are set about a foot and a half higher than usual, Dutcher says, to better fit teens and adults. (The big slide is similarly accommodating to larger bodies.) A toddler area offers a third slide, springy cars and a shelter.

Mark Baard captured the Harvard Lampoon's ad-hoc pool today.

So, my wife was given a reproduction of a photo when she took her job with the city several years ago. We love the picture and have it hanging in our home, but I have never been able (through moderate-to-no actual research) to discern the timeframe, location, or persons captured in the photo. I was hoping some of you could help me crowdsource the answer. Rather than pull it out of the frame and disturb what is kind of a flimsy copy, I took a reasonably good pic with my phone. Help me UHub, you're my only hope.

A mother and two babies paddled through the harbor by Puopolo Park in the North End.

Julie Tolek watched the sun set over Brookline tonight.

On River Street outbound from Cleary Square, just before Turtle Pond Parkway, there's this Goose Crossing sign. This afternoon, what seemed like endless squadrons of geese took full advantage of the sign, crossing from the Mother Brook to their ancestral grazing grounds on the large field across the street.

A group approached the road, waited until it was clear in both directions and then waddled across. Cars stopped. Another gaggle of geese approached the road. The process repeated.

Fireworks over the Charles. Photo by Greg Hum.

One highlight was when Keith Lockhart turned the baton over to Transit Police Officer Richard Donohue.

Several people said attendance seemed to be down on the Esplanade, although it was hard to say if it was because of the increased security or the increased heat. Jeff Tamagini didn't think much of the shutdown of the Mass. Ave. bridge:

Well the fireworks from Mass. Ave. bridge were subpar and pointless. Let's hope it was a one time thing - I want my bridge back!

The hitch? The simulcast of the music. See Kaz's comments, below.

Brian MacLean captured the Neponset at Lower Mills the other day.