While it is technically possible to visit Tulum and Isla Mujeres on the same day, it is not recommended as both destinations offer plenty to explore and enjoy, and rushing through them in one day would not do them justice. It is best to plan separate days for each location to fully experience all they have to offer. Additionally, Isla Mujeres is located off the coast of Cancun, which is a considerable distance from Tulum, so transportation logistics would need to be carefully planned.