After discovering that the Poetry Foundation has a website
with a page dedicated to Dog Poems, at home and in public,
I proceeded to our best known municipal Dog (Park) Beach.
The sign at the top of the access stairs is clear: 
Dogs must be on leash. No one of course obeys.
A second sign says to clean up after pets. Folks do.
The dozens of multifarious canines know what they want:
to socialize, to run, to chase each other, to wrestle, to jump,
but above all to fetch a stick tossed some distance, or a ball.
Down the stretches of sand or into the water. Both will do.
Over and over and over and over and over, just like the waves.
Some will show off their catch-in-the-air skills or sheer speed.
Some yelp or bark to get the attention of peers or their people.
Yet all are humbled when the truly loudest barking of all
comes forcefully ashore from the clearly visible Seal Rock.
(Now I suppose I must decide whether to advise the P. F.).
                        

Oh Sean, please shun the urge to house
unruly reactions to our latest suggestions
as if they were new waves lapping the shore
of this still peaceful and so preferred outpost.
Yes, resist the temptation to go incessantly
toward the sin of whining about the shining
surface of the sea we watch in daily extension.
Accept what the gulls and their many brethren
have shown us in their admirable flights and
graceful gliding upon these sentient rafts of air.