Registration for an extra special Walk the Wight opens on Friday.
Mountbatten is celebrating 30 years of the iconic walk, which has raised more than £5 million since it began in 1991.
To mark 30 years, Mountbatten is encouraging walkers past and present to share their special memories of the event and the people who inspired them to take part.
“To think this is the 30th year of Walk the Wight is quite extraordinary,” said Mountbatten CEO Nigel Hartley.
“The history, the memories and the importance of this walk make it such an amazing event.
“When I walk again this year, I’ll be remembering my mum and how we were given precious moments together when she was dying in a hospice.
“Memories like these make this walk truly inspiring and we want everyone to celebrate with us by remembering someone special on Sunday 10 May.”
Using #iremember, walkers are being invited to share their stories with Mountbatten online and on the day.
Special t-shirts have been designed with a space for people to write the name of their loved one.
Anyone who donates £30 or pledges to raise £100 will receive a t-shirt with their fundraising pack.
All packs will contain an #iremember dedication for walkers to write a memory, which they can wear on the day.
Free island bus services run all day for registered walkers.
The eight-mile Flat Walk from Sandown to Newport is also available for people of all ages and abilities.
To register, visit https://www.mountbatten.org.uk/