Quaver Gym doubles somewhat as a tutorial area. The antechamber of the gym houses Foster's Center for Children, and contains blackboards showing status effects and type advantages.
The trainers, children taught by Foster himself, hide within snowmen. If you try to pass a snowman with a trainer, they will pop out and initiate a battle.
The gold gym statues found in the Quaver Gym and every Gym afterward are of a pokemon named Goraurum. Goraurum was a proposed member of the Chimpoca line, a huge gorilla plated in gold. This mimics the gym statues in some Pokémon games depicting an early beta version of Rhydon, one of the first Pokémon to be designed.
