I am going to Cancun in February for 10 days with my girlfriend. Because of all of the cartel drug war issues the last few years my girlfriend will not travel off the resort grounds. I am very interested in visitingChichen Itza and Valladolid with the Cancun adventure tours which pick you up and drop you off from your resorts. My question is, will it be safe for me to do this tour alone as a single female in my 30s? Please let me know the honest truth I really appreciate it. It's the tour for $97 package all-inclusive.