Hunt for Spain's King Arthur Expedition Unknown : Season 11 Episode 6

TV-PG (self-applied) Travel Channel 1h 00m int(0)

Aired: June 28th, 2023 @ 9:00 PM EST on Travel Channel

Plunging hundreds of feet below ground, Josh explores Spain's treacherous La Garma cave system and finds a floor littered with human remains more than 1,000 years old. Josh's deep dive is a quest for scientific proof of Spain's legendary King Pelayo.