D&D 5E Noncombat Encounter - Underwater

Rilla Brinetread is a tall male lizardfolk berserker with a flourescent tattoo of a shark. He is always laughing at nothing and is currently chanting a shanty with a crewmate
At a shell-covered large statue (a maelstrom is forming)
They are gathering shells
Possibly... they have an Alchemy Jug

Devilheart is a daring male wererat wearing gaudy jewelry. He is always complaining about money and is currently looking at a wreck
At a shallow trench by a cage on a chain (there is the sound of nearby singing)
They are investigating ruins
Possibly... they have an Elemental Gem - water

"Cruel" Salthern is an impulsive minotaur mage dressed in an expensive tabard. He is always talking of the future and is currently practicing with a drum
At a whale skeleton (the area is touched by druidic magic)
They are watching something from the surface

Dor is an expert werebear with bronze fins. They are argumentative with others and are currently trying to hide
At a large rock (nearby is a circular hole)
They are bearing symbols of a deity of darkness

Nutar Seagill is a superstitious lizardfolk gladiator wearing lots of beautiful jewelry. They are offended by talk of gnolls and seek to destroy a local cult
At an ancient coral-carved chambers. There is a narrow cave entrance with a cave entrance blocked by sticky seaweed (someone has left an anchor)
They are hunting a beast
Possibly... they have a Portable Hole

Baker is an ethical male locathah bandit with a tiny dolphin companion. He dislikes younger people and is currently shouting at an underling
At a forest of purple kelp and an area of magical darkness (close by is a cave entrance blocked by sticky seaweed)
They are are guarding a location
Possibly... they have a Cap of Water Breathing

Reef Wreckward is a seasoned female merfolk tribal warrior dressed in an expensive gold bag. She is always seeking attention and is currently laughing at everything
At a cave entrance blocked by sticky seaweed by an abandoned shrine to a power of strength (there is the body of a beast)
They are making underwater art
Possibly... they have 1d4 Potions of Water Breathing

Jannak is an impulsive sea elf veteran with an elderly mole pet. They believe in a life of simple pleasure and are currently waiting for someone
At a hidden remnant of another civilisation. There is a kelp garden with a patch of sea grass (there is a line of large clams)
They are resting

Gorev is a grim male sea folk cult fanatic wearing rags. He hates elves and is currently looking at the water
At an area of damaged coral and a garden of blue kelp (there is the corpse of an intelligent shark)
They are telepathic

Corselie Fluxmage is a manipulative tiefling berserker dressed in a bright pink cloak. She believes in octopuss more than people and is currently holding a book on a legendary oracle
At a large pocket of air and an overgrown tunnel entrance (close to an area of pink kelp)
They are are near their home
Possibly... they have an Elixir of Health