Port of DISCOVERY BAY

The approach to DISCOVERY BAY is supported by 5 navigation aids within 50 nautical miles. The nearest is Discovery Bay Lighthouse at 0.9 NM to the N. Other aids include Southampton Shoals (9.2 NM NNE), Carquinez Strait (31.3 NM WNW), Alameda County (Oakland Area) Lighthouses (32 NM WSW), Oakland Harbor (33.1 NM WSW). Mariners should consult the relevant chart and List of Lights for full approach details.

The Port of DISCOVERY BAY is located within the US West Coast shipping lane — a major trans-Pacific trade route serving West Coast ports of the United States. This strategic position influences vessel traffic density, anchorage availability, and port scheduling.

You can track vessels near DISCOVERY BAY (USDYY) in real time using MarineRadar. The platform displays live AIS positions of nearby ships, including vessel name, type, flag, speed, and course.

The Port of DISCOVERY BAY is a port in US. Its UN/LOCODE is USDYY — the five-character code the UNECE assigns to trade and transport locations, and the identifier used on shipping documents and in port calls.

The first two characters, US, are the ISO country code for US. The remaining three identify the location within that country. The code is issued by the United Nations Economic Commission for Europe and is the international standard for naming ports in trade and transport systems.

The Port of DISCOVERY BAY operates in the UTC-8 time zone. Operating hours, VTS schedules, and pilot availability vary — vessel agents should confirm with the port authority in advance, especially for night arrivals or weekend operations.