In New Pokemon Snap, travel to the islands that make up the Lental region. There are dozens of Pokémon roaming around Lental island. The request is to take a 4-Star Pose of Golisopod.
How to Clear Golisopod Training Request Walkthrough
Guide:
Visit Lental Seafloor (undersea) at research level 3.
Take the alternate route that leads to the underground ruins.
As you enter the ancient ruins in the undersea cave, the first Golisopod you spot is sleeping and is about to be attacked by a Clawitzer.
Hit the Clawitzer with Illumina Orb before it attacks the sleeping Golisopod.
The Golisopod will then wake up, walk over to another nearby Golisopod and start sparring with it (4-star pose).
Take a photo of them sparring to fulfill the request.