Daily Mail on Instagram: "South Korea's Coast Guard rescue swimmers train in a giant wave simulation pool designed to recreate the chaotic conditions they could face during real-life emergencies at sea. The realistic drills help build the strength, endurance and muscle memory needed to carry out rescues in rough waters when every second counts. The Korea Coast Guard says it regularly conducts realistic training to help protect the lives and safety of the public. 🎥 Instagram/@poseidon_lee_official #viral #southkorea #news #swimming #coastguard"