The Pisces IV submersible. This is the main sub that will be used during the cruise. It's smaller than Alvin, and can collect less, but still very cool. I love using subs....:0)
The Pisces V. This sub is kept onboard for safety, and luckily has never had to be used for those reasons. Unlike working in the East Pacific and Atlantic, there is nowhere close that could help if something happens to the sub on the bottom, so this second sub is kept onboard just in case.