The Northeast Coast is bounded by the sea on one side and mountains on the other; it is interspersed with bays and capes characterized by fantastic rock formations and precipitous cliffs, expansive sea-eroded landscapes, fine golden-sand beaches, and an abundance of oceanic ecology. The coast is also the location of a plain and rustic culture as well as historic sites. It is a place, indeed, that serves as a natural classroom for education as well as a coastal recreation area for active participation: an all-purpose tourist destination.

The Northeast Coast features both land and coastal topography, with hilly landscapes on the land and coastal landscapes characterized by capes, cliffs, bays, beaches, sea-eroded platforms, and cuesta formations. At Nanya, Bitou Cape, and Longdong, for example, you can see sea-eroded platforms, while Fulong abounds in sandy beaches, sand dunes, and sand spits.

The varied underwater geography of the northeastern coast is rich in sightseeing resources. The sea bottom off the coast from Nanya to Pitou is noted for rich reef forests. Off the coast from Pitou to Longdong Point, many kinds of corals can be found. The underwater geography from Hemei to Aoti is varied and provides a splendid habitat for many kinds of sea creatures.

Longdong Bay Park and Longdong South Ocean Park are both fine places for observing the oceanic ecology. At Longdong Bay Park, in springtime tidal pools you can see algae, conchs, seaflowers, and sea hares. In the intertidal zones you can see seaflowers and other aquatic plants. On the sea-eroded platforms of Longdong South Ocean Park you can discover traces of Littorina shells, seaflowers, sea hares, and oysters. On the bottom of the area's seawater swimming pools you can see hermit crabs, Tecutus shells, and other sea life.