MV Blue Marlin semi-submersible heavy lift ship.
Carrying an oil platform:
Carrying the USS Cole:
Motion compensating ship personnel transfer gangway - GIF
Boarding a moving cargo vessel - GIF
Launching an oil tanker ship with airbags - GIF, videos, and photo
Heavy-lift ship transporting USS Fitzgerald - video and photo
Salvaging a 50,000 ton ship by cutting it into slices