About the diving tune...is it really house/techno?
If I recall properly while I was back in Mauritius I could hear some "Enigma" themes/tunes attached to some local documentaries and played sometimes in some pubs and discos....try looking for some famous Enigma tracks.
They are really appropriate for Nature and Sea documentaries although I would drown myself listening to them while diving..heheh
Hope this helps
I will try looking for some tracks
ud (facing 0 degrees Celcius under a sunny day)