洞庭湖

洞 = 同 + 氵 : Doggy Dog (du) finds two twins (同) have fallen down the cave (洞) in the engine's bathroom ((e)ng4). He immediately begins to dig a tunnel to bring them a bottle of water (氵) until more help arrives.

庭 = 广 + 廷 : Mother Teresa (ti) wants to one-up her palace courtyard (廷) for the cat-o-nine tails in the engine's kitchen ((e)ng2). She upgrades it to the main hall (庭) by covering the walled courtyard with a parachute (广) as canopy.

湖 = 氵 + 胡 : Helga Horse (hu) is doing an experiment just inside the space station's entrance (Ø2). She lets the water out of a water bottle (氵) and it forms something like a ball very soon. Helga Horse then uses her Confucius beard (胡) to create a loop and let the water, through the surface tension, expand by stretching the loop. She wants to find out how far she can stretch to get a little lake (湖).