Tillamook Bay is a large estuary located on the northern coast of Oregon, USA. It is formed by the confluence of the Tillamook River and the Nehalem River, and it opens into the Pacific Ocean. The bay is known for its rich marine life and serves as an important habitat for various species of fish and birds. The surrounding area features scenic landscapes, including lush forests and rolling hills. Tillamook Bay is also popular for recreational activities such as fishing, kayaking, and birdwatching. The nearby town of Tillamook is famous for its dairy products, particularly cheese, which attracts many visitors to the region.