The Polygon Seahorse is the first diving related Podcast in the Dutch language. Since the start of the Podcast 52 editions has been recorded. Glenn the Wilde from the Polygon Seahorse invited the HDS Netherlands (Kees de Jonge and André Merks) to record edition 52 about the history of diving and the HDS nl. Thanks to the great questions from Glenn, who really was interested in the subject of historical diving, the Podcast finally became an episode of almost 90 minutes.
You can find the podcast here;