Admiralty EasyTide Online tidal information from the UK Hydrographic Office, for over 6000 ports around the world. Calculate tidal predictions up to 7 days in advance.
The UKHO is a government Trading Fund and part of the Ministry of Defence. Primary activity is the provision of navigational products and services to the Royal Navy and the merchant marine in compliance with Safety Of Life At Sea (SOLAS) Regulations.
The Physical Oceanography Department provides a range of oceanographic products and services in support of the Royal Navy's environmental forecasting and operations.