The northern terminus of the route is at the southern edge of Slateport City. The southern terminus is at Route 108.
The route is comprised mostly of a large beach on the shore of Slateport, where there are many trainers for the player to face. Once the player has Surf, he or she can travel the water as wanted, encountering Pokémon native to Hoenn's seas and trainers on the way to and from the Abandoned Ship. Along the aquatic part of the route, there are a few small islands, with more trainers to face than on the beach. Unlike other water routes, Swimmers are not very common here.
On the beach area of the route is a small house, the Seashore House, that offers the challenge of battling three trainers. The prize is six cans of Soda Pop. Soda Pop is also available to buy for 300.
The southern portion of the route runs east-west to match the alignment of Route 108.