A snorkeller living in Okinawa, Japan, has issued a public warning after surviving an encounter with a swarm of venomous box jellyfish while swimming alone at a secluded beach. Melanie shared footage showing severe stings and visible scars on her arm, drawing over two million views on TikTok as experts warn of the potential lethality of box jellyfish venom. 🌎 Japan Snorkeller Shares Shocking Injuries After Encounter With Venomous Box Jellyfish,…