More than £300,000 will be spent on restoring Tring Park to transform it from a quiet beauty spot into a major visitor attraction for the town.
Its 19th century lime avenue and parkland as well as the chalk grassland habitats will be spruced up.
It is part of a project to link it with the Natural History Museum on Akeman Street so together they can become an experience similar to the Ashridge Estate.
The target is to increase visitor numbers three-fold from 25,000 to 75,000 with a campaign to promote what will be called Experience Tring.
The vision is for people to go on guided walks and learn about the park’s history and heritage. There will be welcome signs at the park and information points and signs around town directing people to it.
A planning application was submitted at the beginning of the year to turn Dawes Meadow off Hastoe Lane into a car park.
The Woodland Trust, which manages the park, and the museum are getting the £329,000 project under way thanks to a Heritage Lottery Fund grant.
Woodland Trust spokesman Chris Hickman said: “One of the first things we will be doing is recruiting people. A project officer will overlook the works and take on volunteers.
“We need community people, who know the history of the town and park, to promote it to groups, schools and organisations.”
Volunteer opportunities include conservation, helping to raise awareness, and delivering educational activities.
A tender has gone out for the work, which is expected to start in the New Year and take three to four years to complete.
Mayor of Tring Councillor Nick Hollinghurst said: “The Woodland Trust has a good track record in preserving and enhancing the natural environment while improving.”