Just take a look at these underwater shots from the European Swimming Championships in Eindhoven, and read here on Reuters about how he did it.
Beautiful Shots From Eindhoven
By rokur
rokur
Production engineer and certified swim coach. Full-time IT consultant, spare-time swimming aficionado. 2 sons, 2 daughters and a wife. President of the Faroe Islands Aquatics Federation. Likes to run :-)