Thanks for the heads up.
Bees in huge swarms are usually “Africanized honeybees” that you can hear them buzzin from a distance. They are usually in big swamps in May & June with all the blooming flowers. I have heard of the following recommendations 1. Wear light-colored clothing. 2. Remain clam and don’t swat or swing at them but just try to leave. 3. Try not to get stung because that will release tagging pheromones, potent chemical signals that will attract and arouse more bees to you. 4. After a safe distance away, stop and check your clothing and pack to make sure there aren’t any still crawling on you. Bee careful.