It was a sunny warm summer day on the beach

Ron: in the ocean swimming around wearing a shark fin on his back to prank people

Harry: screaming thinking Ron is a shark

Hermione: laughing

Dumbledore: sitting in the sand beside McGonagall, they were talking

Snape: standing under a palm tree in his regular dark robes. The only thing he changed was he was wearing a hat

Draco: fighting with Neville because Neville got a blue popsicle and he got a purple one.

Lucius: laying on a towel tanning

Umbridge: screaming at Ron to stop scaring people

Flitwick: sitting out because he could drown because of his short height

Lupin: running around as a werewolf

Sirius: swimming with Harry

Fred and George: pranking people as well

Ginny: tanning

Hooch: playing a sport with Luna

Hagrid: eating all the snacks

Sprout: sitting in the shallow water

Trelawney: eating a popsicle like an insane person

Flich: talking with Umbridge

Voldemort and Beatrice: on jet skis trying to run over people

Lockhart: begging Hooch to let him play because he wants to show off his moves

Slughorn: talking with Dumbledore and McGonagall

Moody: sitting under a tree (not Snapes) drinking out of a coconut. Idk

Pettigrew: running around as a rat. Lupin is chasing him