TotalTide has been developed to the UKHO's exceptional standards for quality and accuracy to ensure maximum navigational benefit and total confidence. A powerful calculation algorithm with official tidal data from the world's premier hydrographic authorities ensures that you can use the data with confidence.

TotalTide enables you to select and simultaneously calculate tidal heights for multiple ports for up to seven consecutive days. Results include periods of daylight and nautical twilight, moon phases and a springs and neaps indicator.

Further information on TotalTide is available from Lilley & Gillie or by clicking here

Digital List of Lights has been designed to meet SOLAS carriage requirements and uses exactly the same official data provided in the paper Admiralty List of Lights. Information is sourced directly from national hydrographic offices and includes lights, light vessels, major light buoys and fog signals.

Developed primarily for the professional mariner by the UK Hydrographic Office, the Admiralty Digital List of Lights provides details of more than 70,000 unique light structures worldwide, providing complete global coverage.

Further information on Digital List of Lights is available from Lilley & Gillie or by clicking here