John
The fire specialist sits on the peak, looking down on the island with his pokemon. The hike up wasn't too painful for the old man because of his build, but he had to admit he was getting rusty. His starter, Blaziken was pacing around while his ace Centiskorch was simply coiled with its trainer.

The winds were cool high up, and Kabu's short salt-pepper hair rustles slightly, he didn't encounter any of the Galar gym leaders but he hoped to see some familiar faces.
Robert
A mountain's peak, a place where seldom people come. A secluded area perfect for training. Limited oxygen, placing even more strain on the body as it gasps for air. These kind of areas were the places where you'd find a person like Bea training. She wasn't about the normal gyms with weights and equipment, she was the type who'd find the most extreme methods of training. Even as she promised Allister that she'd be taking a nice vacation on the island, her body felt off after a single day of relaxation, causing her to search for various methods of training. Alas, she'd find a utopia on the mountain peaks, where not many came along. Apart for this old timer...

The fire type specialist, the father figure of the Galar region and the father figure she always looked up to. Her heart began feeling ablaze as she saw the back of her father figure, someone who always gave her motivation, someone who cared for her. Although she didn't expect to see him here, it wasn't the worst thing that could happen either. 

"K-Kabu?" She'd call out curiously, wondering if this was Kabu at all. This could be another admirer bearing the outfit of Kabu.
John
The man was also the intense training type, but he decided to take the island invitation to relfect back on old times, and a decision he had been thinking about for a while.

His thoughts were interrupted by a familiar voice coming from behind him as he twisted around to see, it was Bea. He didn't openly admit it, but most of the younger gym leaders were like his own kids, especially the fighting type prodigy. He met her as a spunky kid in a nearby dojo, battling opponents twice her size and age. While Kabu may have won due to his ~~harsh~~ training, he saw a bit of himself in the girl that struck a cord; and decided to be her mentor. Now she wasn't the only one, but Kabu spent time around her the most.

He stands up to look at her as his pokemon do the same, "Bea, its me; its a surprise seeing you here"
Robert
This unexpected meeting with her ~~Father~~ mentor brought a little smile on the small gym leader's face. She didn't really expect the fire type gym leader to be present on the island either, knowing how much Motostoke and the gym battles meant to him. Although unexpected, this meeting was pleasant, she did miss him after all.

Kabu had been a mentor to her ever since she arrived at a dojo. Hailed as the "Karate Prodigy" By all of the dojo, Bea had been at her highest spirits. She was able to take down others double her size, Pokemon who supposedly boasted immense strength and agility. Her Pokemon battling was extraordinary, utilising her fighting type Pokemon to their fullest potential... Or at least that was what she thought. It was only within her own world that she was the strongest but her eyes were soon opened at the first taste of defeat... At the hands of the current Galar champion: Leon. It was Kabu who brought her out of despair, mentoring her, reassuring her that she'll become even stronger than him one day.

"It... It is! I thought you would've stayed back in Galar too." She'd give a little bow to him as she got closer.
John
His normall stoic expression softened as he gave the smaller gym leader a pat on the shoulder when she rose up, "No need to be so formal, its alright.", the gym was indeed important to him, but he decided to take the break anyways. 

Bea's aggressive competitive nature and high standards were very similar to Kabu's when he entered the region. While he was always second and somewhat considered highly in Hoenn, even the smallest doubts from other would make him overthink. Him taking her in was not only out of concern and pity, but also kinship of a sorts.

While he mellowed down in recent years, his high self standards still stood *As he even considered retiring at this point*. He was getting a bit old, and thought that maybe a more energetic person should take care of the gym, but he obviously couldn't think about that on duty.

"The gym means a lot to me... But l have things on my mind. Enough about me and how about you? Did you have a good time here so far?"