"You are correct. Though it's not supposed to be active... This is potentially worrying."

"Should we warn them?"

"I'm quite sure they know. Let's keep going."

No arguments there.

They reach the island, eventually. Gren scans the place with her telescope as they approach the beach. "There's a way up, but the bridge is out and rocks are blocking the way..."

"Maybe we could shove them out the way?"

"Let's go take a look."

Red Lions gets to the beach and moors himself.

"Oh, is that Beedle? I know him!" Nemo grins. "I'll be over there working out a deal, come find me if you need me."

The twins try to move the rocks.

Nope.

But they might be interested in the sign next to some oddly bomb-ish fruit declaring, "WARNING! DO NOT ATTACK THE BOMB FRUIT!"

They experimentally attack the bomb fruit.

BOOM!

"Eep! Hey! You two can read, right?!"

"Yeah, and now we know how to get rid of the bombs."

...It grows back. Alarmingly fast. 

"Or not. Guess they're magic. Not hard to guess, exploding plants wouldn't last long on their own."

"We can use them on the rocks!"

"Carefully. But that's a good idea, actually."

"Fine, carefully."

For certain values of carefully anyway. It turns out plucking one starts it ticking down to an explosion after a few seconds. Pluck, run, set down, run again, BOOM, rocks clear. "This would be really fun if it weren't kinda dangerous!"

Ezekiel just laughs.

Eventually the path is clear. But the bridge is still out. "Hey, it looks like if one of you can get up there, we could push that rock there off that ledge. Then we could climb up and not need the bridge."

This looks like a job for Tabitha!

THUMP.

"Bet I could have done it eventually, but you're so much faster, thanks."

"NEMO! WE'RE GOING UP TO THE POST STATION NOW!"

"I'LL FOLLOW IN A LITTLE WHILE!"

"See ya later!"

He waves and resumes talking to a lanky guy on another boat. Probably trying to scam him.

As Gren and company walk through the tunnel to the far side of the island, they are met by a postman! "Oh! Visitors. That hasn't happened in a while."