Hank: Chilling and watching the water flow

2bdamned: Applying Sunscreen to Hank's body because he forgot

Deimos and Sanford: Chilling and splashing the water at each other

Jebus: Cooking while drinking a cold beer

Tricky: Hitting around a ball in the pool, waiting for the hotdogs to be done

Sheriff: Drinking a beer while sitting down cause he can't really swim

The Auditor: Can't swim because body is literally made out of fire

Phobos: Checking how Nexus Core is going