Bad Botanists

This is what happened:

Roo-kai flew above the  swimming botanists, keeping an eye down.

The swimming botanists swam below him, looking up at Roo-kai.

Roo-kai spots the Point Lowly Campground. 

He indicates to the botanists to swim to the shore.

But the botanists have disappeared.

Crark! thinks Roo-kai. 

Should he turn back or wait for them to resurface?

He circles, while deciding.

An empty dinghy floats by.

Craaark! thinks Roo-kai. I forgot about the dinghy.

I should let Baudin know where it is. 

But he can't lose the botanists.

Fortunately at this point the botanists resurface, their arms full of seagrass..

Where were you? asks Roo-kai.

We stopped because we saw some underwater botany, says Jean-Botanist.

And collected some samples, says Carl-Botanist.

That's seagrass, says Roo-kai. You shouldn't have picked so much of it.

Why? asks Jean-Botanist. 

One strand would do, says Roo-kai.

But it all came up when we pulled it, says Carl-Botanist.

Go back down and replant it, says Roo-kai. Except for one strand.

Each? asks Jean-Botanist.

I suppose so, says Roo-kai. And while you do that, I'll fly back to the lighthouse and let Baudin know about his dinghy.

What about us? asks Carl-Botanist.

Either wait here for me, or swim ashore to the Point Lowly Campground, says Roo-kai. It's just over there.

Okay, say the botanists.

Roo-kai flies back to the lighthouse.

The botanists swim their samples of seagrass down to the sea bed, and start replanting.

Lucky Roo-kai saw us, says Carl-Botanist.

Double lucky, says Jean-Botanist.

Now we know what it's called,  says Carl-Botanist. 

Yes, seagrass, says Jean-Botanist. And we have proper sized samples. Gaius can't call us bad botanists.

They finish replanting.

They swim up to the surface each with one strand of seagrass.

They look for the Point Lowly Campgound, 

The dinghy is floating close to shore. Terence is on the sand, waiting.

He sees the dinghy.

And runs back up the sand.

Moments later Gaius and Denis come down to look at the dinghy.

Roo-kai appears in the sky heading towards them.

The cuttlefish botanists swim shorewards 

Yes

It all makes sense now.