On Main Deck 3 are located most of the ship's research facilities (oceanography, marine biology, geology). They include 15 fixed labs, 3 container labs, refrigerated storage rooms, aft-located working deck (cranes, A-frame for trawling), a helicopter hangar.
Midship, the vessel has a scientific moon pool (aka "wet porch") sized 3x4 m / 10x13 ft. This is a floor opening in the hull that gives direct access to the water below. It allows the crew to deploy underwater instruments, including ROVs and AUVs (remotely operated and autonomous underwater vehicles / robotic submarines).