An icon of Napier amusement attractions run by volunteer enthusiasts aged up to their mid-80s is at risk of running off the rails unless it gets an infusion of new members to help keep it on track.

It's the Hawke's Bay Model Engineering Society which runs the miniature ride-on railway over an 800m track at Anderson Park, Greenmeadows.

"We're all over 70," lamented club member, train driver and retired builder Brian Larkin, at the track last weekend with president Ross Bates, a model trains enthusiast who came to the club from New Plymouth about 24 years ago, vice-president, retired-engineer and