The world famous Three Sisters will soon get a million-dollar makeover with better access for the almost two million tourists who pass through the site each year.

NSW Environment Minister Rob Stokes says walking tracks around the iconic Blue Mountains attraction will also be upgraded.

The $1.5 million package of improvements includes landscaping, resurfacing of paths and better visitor safety and access.

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“[We want] to ensure many more visitors can enjoy this ancient and spectacular landscape,” Mr Stokes said on Saturday.

Constructed in the 1930s, the walking track and precinct has received its share of famous visitors.

The Three Sisters, an iconic visitor favourite on the NSW Blue Mountains. Photo: AAP

These have included the Duke and Duchess of Cambridge and Crown Prince Frederik and Crown Princess Mary of Denmark, who stopped by following 2013’s devastating bushfires.

William and Kate also met with fire affected families and firefighters.

Their visit, in April, reminded residents they hadn’t been forgotten and put the area back on tourist maps.

The economy in the mountains has struggled since the fires.

“We need to attract visitors back to the mountains,” Blue Mountains Mayor Mark Greenhill said.

The government hopes the upgrade and restoration will attract more overseas visitors and also help recognise the Indigenous history of the area.