Route 761 leads you towards Route 762. It's one of the ocean terrain so you'll need a Water Pokemon that knows Surf. The weather is beautifully clear so you'll be able to go about your journey with no problem! There are few Pokemon here but all are always important from Chinchou, Corsila, Starmie, Psyduck, Caravahn, Marill, Drifloon, and Magikarp.
Good luck, Pokemon Trainers.
Pokemon:
Chinchou
Corsila
Starmie
Psyduck
Caravahn
Marill
Drifloon
Magikarp