Walking to Playa Linda from Ixtapa

Hi~recently I talked with someone who walks from Ixtapa(starting on the bridge at the Marina) to Playa Linda and they start at precisely 7:00 AM.They then ride the bus back down into town. Some days they walk from Zihua to Ixtapa. Problem is, I can't remember which days they do what! Could someone please give the details of these walks please. Thanks.

Terry