Because there are so few sights in Cancun, there are no orientation tours. Your best bet is to ride the local bus circuit to get a feel for the island's layout. The buses run 24 hours a day, and you'll rarely have to wait more than five minutes.
Thinking of a trip to Cancun? For up-to-the-minute hotel and restaurant recommendations, plus the best planning advice, check out our online Cancun Travel Guide.