Promenade Via Alemanya
The promenade along the beach (Platja de Can Cap de Bou) in Port de Pollenca is a beautiful walk. A great place to start is roughly around Via Alemanya 5, depending on how you plan to arrive. Parking is available here along the street for free. The promenade goes along Via Alemanya and turn into Passeig de Londres before becoming Passeig Saralegui ending roughly around the port.
While it is possible to continue walking the promenade for this "thing to do" is to enjoy a stroll along the beautifully paved sidewalk, that features palm trees, benches and trash bins in changing order every few meters. You'll also find a beautifully paved bike path leading in both directions. The stroll walks along the beach, coming across numerous chiringuitos, playgrounds and eventually shops the closer you get to the center of town.
The stroll along these three streets is roughly 1.5km and is advisable during the early morning hours or later afternoons when the sun is not as hot, depending on the activity you would like to do.