Cave diving on TV

[mikem]

On two different programmes this evening:
https://www.bbc.co.uk/iplayer/episode/m0015qj3/earths-great-rivers-ii-series-1-2-danube

& world-s-most-scenic-river-journeys on Ch5 (in Bosnia)

 

[Roger W]

There was a "River Monsters" on ITV4, with Jeremy diving into the blue holes on the island of Andros.  And looking for giant octopuses...