Great at Diving AND Surfacing
I have been privileged to work in the field of autonomous robotics for about as long as there has been autonomous robotics. One group that I am especially glad to have worked with is Nauticus Robotics in Houston. They have really mastered the ability to send an aquatic robot, equipped with 3D vision and manipulator arms, and have it complete complex tasks without human intervention.
Now they are coming out with a new version of their Aquanaut underwater robot which improves in mission length, mobility, sensing, manipulation, and very importantly, improving the capability to get the vehicle into and out of the water safely, even in rough seas. Really good stuff.