It is understood that he had been in the Ben Nevis pub on Argyll Street on the evening he went missing.
The Fort William service is the most spectacular, offering a night on the rails and a morning crossing wonderful Highland scenery before depositing fresh-faced passengers from the two carriages to have made it all the way at the foot of the path up Ben Nevis, the country's highest peak.
The group, which included Mr Wilson's brother, Carl Wright, took the wrong turn at the start of the trek in Scotland and climbed Stob Ban, a much steeper peak than the higher Ben Nevis.
BBC: Wiltshire team scales wrong mountain in peaks challenge
Workers in banana costumes at the foot of Ben Nevis have been asking walkers not to leave rubbish on its slopes.
Landscape charity the John Muir Trust, which owns Ben Nevis Estate, said the magazine had raised important issues.
On Monday, the John Muir Trust revealed it was keen to have restrictions removed to and from Ben Nevis, the highest mountain in Britain.
Mr Hawkins said the trust was treating Ben Nevis as "a special case".
On its website, the John Muir Trust said Ben Nevis has rare and sensitive wildlife and warned that high visitor numbers contributed to erosion.
Scafell Pike in the Lake District, England, and Ben Nevis in Scotland, all within 24 hours.
BBC: Wiltshire team scales wrong mountain in peaks challenge
Beacons will also blaze in Northern Ireland, on Ben Nevis in Scotland, and on the River Thames in London.
They had just completed the three peaks (Snowdon, Scafell Pike and Ben Nevis) to raise money for a children's education charity.
Lt Comm Martin Lanni, Lt Michael Paulet, and Flt Lt Lee Turner all received the Air Force Cross for their role in the helicopter rescue of a group of climbers from Ben Nevis in May 2007.
The Trust's Nigel Hawkins said while the body was anxious to ensure the disease had no chance of spreading, allowing climbers and walkers to scale Ben Nevis would not jeopardise containment plans.
The challenge features the highest peaks in England, Wales and Scotland - Scafell Pike, Snowdon and Ben Nevis.
Marine Wright joined the service in November 2009, took part in navy ski championships in France, scaled Ben Nevis and had a passion for motocross.
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