The 96-year-old prince, also known as the Duke of Edinburgh, hosted the closing of the Royal Marines' 1664 Global Challenge charity event in his capacity as ceremonial head of the force. The challenge, which raises funds and awareness for the Royal Marines Charity, sees royal marines from around the country running 16.64 miles each day for 100 days, totalling a distance of 1664 miles.
He was also met with cheers as he was handed the Challenge baton.
The Duke of Edinburgh will meet Royal Marines at Buckingham Palace on Wednesday in his final official engagement before he retires from public duty.More news: Samsung reports record $9.7 billion profit, buoyed by a 'memory super cycle'
The Queen's Consort announced in May he would be retiring from royal engagements, a decision which was fully supported by the Queen and was not medically related. And that time, he'd been a patron of more than 800 organizations.
Prince Philip was unexpectedly hospitalized during the Queen's Diamond Jubilee celebrations, according to USA Today.
At one stage, the military band played "for he's a jolly good fellow" as a tribute to the elderly royal, who has served in his consort role for longer than anyone else in British history.
Prince Philip "will not be accepting new invitations for visits and engagements, although he may still choose to attend certain public events from time to time", a statement read.More news: Indian Women's Cricket Team Receives Immense Reception from Crowd at Mumbai
Since the Queen's accession to the throne in 1953, the Duke has supported his wife in her royal duties as sovereign, accompanying her to ceremonies, state dinners, and tours overseas.
While this is his final official celebration, the palace tweeted that His Royal Highness "may still attend events alongside The Queen from time to time".
A headline on the online version of the paper screamed: "HOLD HOLD HOLD Prince Philip, Duke of Edinburgh, dies aged XX".
They have four children and eight grandchildren.More news: Sprint shares rise on first quarter
The royal couple are scheduled to celebrate their 70th wedding anniversary in November.