Manzanillo is an international tourist destination with its own international airport. The easiest way to reach Manzanillo is to fly to Mexico City and then to Manzanillo. A complete list of options to reach Manzanillo will be posted later.
Visa requirements from the Mexican government for all nationalities can be found here. Please be aware that in case you need a visa, the Mexican government may take some time to process the application and thus this has to be done with enough time in advance. If you require an invitation letter please ask for it during the registration process.