It depends where in Alcudia you mean.

If its the Bellvue or port area then I would say definately too far to walk in the heat of the day especially!

If its Playa de Muro its walkable but risky due to the layout of the roads.

I would get the bus, its only a couple of Euros and runs very regularly between all three resorts (Can Picafort - Alcudia - Peurto Pollensa and back).

Is it near peurto Alcudia as I stayed in the hotel Pices in the summer and would like to visit again

The distance is around 8-9 kilometres. As Tootsie says, the bus is the best option to travel between the two places.

Is it near peurto Alcudia as I stayed in the hotel Pices in the summer and would like to visit again

Again it would not be a walkable distance - however the buses run very regularly and I'd say it would be no more than 10 minutes (if even that) on the bus.