Deep beneath the Atlantic swells off Florida’s Treasure Coast, Josh Gates teams up with seasoned salvage diver Chris James on the ultimate underwater treasure hunt! Diving straight onto the reef wreckage of the legendary 1715 Spanish fleet flagship, the Capitana, the pair scan the seabed using high-precision underwater metal detectors. Sweeping through shifting sands and coral pockets, the detector suddenly shrieks with a sharp, high-conductivity hit. Hand-fanning the dense sediment layer by layer, Josh and Chris uncover centuries-old Spanish colonial silver coins, authentically preserved beneath the ocean floor for over 300 years on Expedition Unknown Will this incredible discovery lead to the mother lode of the lost 1715 fleet? Watch Expedition Unknown Season 2, Episode 18 on Discovery Channel India. 🔔Subscribe Now! - https://www.youtube.com/@DiscoverychannelInd?sub_confirmation=1 🌍 Explore the World’s Greatest Mysteries: https://www.youtube.com/playlist?list=PLN4N_L1U4V6k5x_TLcFjME16xWvvd93Rs 🏕️ Watch Epic Survival Series: https://www.youtube.com/playlist?list=PLN4N_L1U4V6lP-kyI7OBnnCOfGHYU1t8y 👍Do Not Forget To Like, Share, and Comment on Our Videos. 📲Also, Follow Us on Social Media Facebook: www.facebook.com/DiscoveryChannelIndiaOfficial/ Twitter: twitter.com/DiscoveryIN Instagram: www.instagram.com/discoverychannelIn/ #discoverychannel #discoverychannelshows #discoverychannelindia