Sailing (called yachting for most of its Olympic history), has been in the modern Olympics since they began.
Everything – everything – is photoshopped for the last 20 years.
The sail boat shot looks like an HDRI composite, but the shot must be highspeed, so unless the camera automatically brackets the exposures, or shoots in 32 bit color depth (does RAW shoot 32bit?), it’s some decent photography + photoshopping.
As for diving dude, yeh, either his penis is in harmony with his trajectory (isn’t everybody’s?), or perhaps there was some pre-shoot… tuckage.