The Duke of Edinburgh is set to meet the Royal Marines who have completed the 1664 challenge today- his final official royal event before he retires from public engagements.
The event will take place in the grounds of Buckingham Palace, where Philip will celebrate the achievements of serviceman who have taken part in the series of strength and endurance feats.
The 1664 Global Challenge raises money and awareness for the Royal Marines Charity, and is named after the year in which the corps was founded. Full Story