A few things to do on Isla Mujeres in Mexico…

Beachfront – swimming, laying out, massages

Fishing Expiditions

Snorkeling & Scuba Diving Trips

Tortugarana (museum with sea turtles & sea horses)

Swimming with the Dolphins

Moped/Golf Cart Rentals

Plenty of delicious places to eat, drink & be merry

Cancún shopping trip –  Mercado 23 (local market) and Mercado 28 (tourist market)

And much more…

Tripadvisor Things to Do in Isla Mujeres