Most cruises kick off from Iquitos and It is really easy to obtain there with immediate flights from Lima. If you're taking one of the luxury cruises you may actually start from Nauta a historic port city appropriate on the Marañón River - you'll get there by a gorgeous generate https://jungle-tours-peru50492.dailyhitblog.com/39146111/amazon-jungle-tours-peru-puerto-maldonado-fundamentals-explained