暑假开启，小海鲜伤人事件频发！赶海防护必看→

Group 1 - The article highlights the potential risks associated with beach activities, particularly the dangers posed by marine life such as jellyfish and blue-ringed octopuses [1][3][6] - It emphasizes the importance of wearing protective gear while engaging in beach activities to prevent injuries from marine creatures [6][10] - The article discusses the common occurrence of jellyfish stings in coastal cities in China, particularly from the moon jellyfish, which can cause skin inflammation and severe reactions [3][6] Group 2 - The article advises beachgoers to be cautious of environmental risks, including tidal changes and rip currents, which can pose significant dangers [11][13] - It suggests checking tidal schedules and choosing safe weather conditions for beach outings, as well as avoiding beach activities during typhoon warnings or heavy rain [11][13] - The article provides guidance on how to respond if caught in a rip current, recommending to stay calm and float until out of the current before swimming parallel to the shore [13]