The East River, a body of water that flows along the eastern edge of Manhattan, is often misunderstood as a traditional river. However, it is actually a tidal strait, a complex waterway that connects the Long Island Sound to the Atlantic Ocean. This distinction is crucial in understanding the unique characteristics of the East River and its impact on the surrounding ecosystem. As a tidal strait, the East River's water is a mix of fresh and saltwater, with a high salinity level due to its connection to the ocean. This salinity shapes the flora and fauna found around Pier 35, where the East River Esplanade offers a tranquil escape from the bustling city. The pier's edge is home to a diverse array of marine life, including species that are adapted to the brackish waters. The unique geography of the East River also influences the local vegetation. Salt-tolerant plants such as salt marsh grasses and mangroves are found along the river's edge, providing a habitat for a variety of wildlife. The pier's design and landscaping take into account the East River's tidal fluctuations, incorporating features that mitigate the impact of flooding and erosion. Understanding the East River as a tidal strait rather than a traditional river allows us to appreciate its distinct character and the ways in which it supports a rich and diverse ecosystem. As we explore the East River Esplanade and Pier 35, we can gain a deeper appreciation for the intricate relationships between the water, the land, and the life that thrives in this dynamic environment.