As grey skies rolled over Bald Hill on Thursday, concealing the picturesque landscape below, the region's ALP politicians donned umbrellas to pledge money for the first stage of an Illawarra Escarpment Walk.

The money, which would fund the upgrade and connection of three walking routes - Otford to Bald Hill, Bald Hill to Stanwell Park and Stanwell Park to Stanwell Creek - is subject to the party being elected on March 28.

Shadow Minister for the Illawarra, and Keira MP Ryan Park, was joined by Labor candidate for Heathcote, Maryanne Stuart, and federal deputy Labor leader, Tanya Plibersek, for the announcement.

"This has been on the cards for decades," Mr Park said.

"It is now time to accelerate this as we transition our economy from traditional industries to one that we need to rely on - the growth in tourism - particularly here in the northern suburbs."

The continuous walking track would link Oftord and the Royal National Park with Austinmer.

"It will help protect the environment, which is a significant issue that's raised with me consistently by residents around here," Ms Stuart said.

"This is a beautiful part of the world and it's a way of being able to invite people to come along, have a look and also participate."

The money would be reserved in the $380 million Illawarra Infrastructure Investment Fund, which was announced last month by NSW Opposition Leader Luke Foley.

Labor says the fund would provide the Illawarra with its fair share of proceeds from the long-term lease of Port Kembla port.

Asked if voters would prefer $1 million being spent elsewhere, Mr Park said the money was about supporting the economy.

"We'll be having lots to say about schools and hospitals, but another important part of our region here is tourism and is protecting the environment," he said. "We make no apologies for making sure we can support a viable tourist industry and ... protect our escarpment."

andrew.pearson@fairfaxmedia.com.au