Eastern Melemele Sea (accessible from Route 1, Hau'oli Outskirts)
Western Melemele Sea (accessible from Hau'oli City, Beachfront)
As the name implies, Melemele Sea is an ocean. Both areas, including the islands they contain, require either Lapras Paddle or Sharpedo Jet to access.
Eastern Melemele Sea
The eastern part of Melemele Sea makes up the majority of the location. It has two islands, one of which lies east of Route 1's Hau'oli Outskirts beach. This island is accessible with either Lapras Paddle or Sharpedo Jet. However, the second of the two islands can only be accessed with Sharpedo Jet: A string of rocks completely blocks access to the beach on the south side of this island.
This part of Melemele Sea has four fishing spots, the southernmost of requires Sharpedo Jet to access. This fishing spot lies south of the southern island's beach. Another fishing spot is at the center of the group of three rocky outcrops between the southern island and Route 1's Hau'oli Outskirts beach. A third fishing spot sits between that beach and the northern island, and the fourth fishing spot lies just north of the northern island.
Western Melemele Sea
The western part of Melemele Sea is smaller than the eastern part. It has an isolated beach area at the base of the mountain that houses Ten Carat Hill. A ring of rocks blocks a tunnel to an isolated part of Ten Carat Hill just below this beach.
Despite being smaller than the Eastern Melemele Sea, this part still has four fishing spots. Two of these are near the isolated beach: One lies just northwest of the beach, and the other lies near the underwater sea wall west of the beach. The third fishing spot is just south of a large pile of rocks west of the tunnel to Ten Carat Hill, and the fourth fishing spot sits southeast of the tunnel entrance.