Arrowhead Marsh, Oakland - Rails and Ducks. Join us at the Martin Luther King Jr Regional Shoreline to look for rails, ducks, and other wintering waterfowl in this vibrant wetlands habitat. This is a King Tide day, which should make viewing special. See https://www.ebparks.org/parks/martin-luther-king Accessibility: Level trails and paved paths make this site accessible for most participants. Meet at the Pink Wall in Orinda on El Nido Ranch Rd between St Stephens Drive and Charles Hill Rd. Please dress in layers, wear sturdy walking shoes and bring lunch.