There is a public bus available for $1 that can take you to La Isla outdoor shopping mall down the strip (stores include; Zara, Adidas, Nike, etc), and various restaurants and activities. This downtown area is where you can find souvenirs and touristy attractions.
The Fashion Harbour is walking distance to La Isla outdoor mall! This area has all luxury brand stores such as Prada, Saint Laurent, Louis Vuitton, Gucci, etc! You can take a public bus for $1 to this Fashion Harbour. It is about an 8 minute bus drive from the hotel.
There are ferry's available for transportation for a day trip to the island Isla Mujeres! The front desk will be able to give directions to which bus stop to get off at in order to get on the ferry to the island. Isla Mujeres is a very small island with very calm waters. I would recommend taking a beach bag with you and your drivers license to rent golf carts at the island.