Mazatlan has year around sport fishing 1/2 day and all day charters available, call for specials.  Also fresh water trout and Bass fishing at lake Salto’s. There are three championship golf courses, clubs can be rented. There are tours of interest in Mazatlan and to other surrounding towns. Shop till you drop in the downtown market, an experience you can't pass up. While your downtown visit the Cathedral and stroll the plaza in front and shop the street side vendors.  
Beach activities, so much to do so little time. Take a  catamaran ride to the Island or take the parasail up for a birds eye view. Snorkeling ,ocean kayaks, boogie and surf boards, are available. You can rent Quad runners, motorcycles, scooters, gas golf carts or a car and tour the town on your own.  Or just lay in the sun on Mazatlan’s famous beach’s, have a cold beer and watch the people go by. I promise you’ll have a great time and see Mazatlan like a local. Make your reservation’s now.