The following are my precautions for sailing on the Amazon River: Be fully prepared: Before sailing, you should understand the river's hydrological data, waterway conditions, meteorological conditions, etc., and make corresponding preparations. Comply with navigation rules: During the navigation process, you must comply with local navigation rules, such as night navigation, ship intersections, etc., to ensure navigation safety. Pay attention to water safety: When passing through dangerous waters, such as shoals, reefs, etc., you must pay special attention to safety, stay alert, and avoid accidents. Keep in touch with the shore: During the navigation process, you must keep in touch with the shore and keep abreast of the latest waterway information, weather forecasts, etc., so as to make corresponding decisions. Pay attention to protecting the environment: During the navigation process, you must pay attention to protecting the river's environment, not littering, and reducing the impact on the river's ecology. Comply with local laws and regulations: During the navigation process, you must comply with local laws and regulations, such as import and export management, quarantine inspection, etc., to ensure that the navigation is legal and compliant. Keep the ship maintained: During the navigation process, you must maintain the maintenance of the ship, regularly check the hull, machinery and other equipment to ensure its normal operation. Pay attention to personal safety: During the voyage, pay attention to personal safety, such as wearing life jackets, mastering first aid skills, etc. to ensure personal safety. I hope the above information is helpful to you.