Each year, Mid-North Coast residents head to the coast to take on vital research for NSW's only volunteer wildlife rehabilitation group, Organisation for the Rescue and Research of Cetaceans in Australia (ORRCA).

From dawn to dusk on June 30, eager whale watchers across the nation record the number of whales from prime coastal vantage points.

ORRCA rescue manager Leigh Mansfield said this year's census site is at Tacking Point Lighthouse in Port Macquarie.

"It's a good educational thing to do in helping to count whales, see how many are out there but also meet National Parks staff who will be up here," he said.

"People can learn all about ORRCA and what National Parks do with whales.

"People can learn about the descriptions of the different types of marine mammals that we have got, who to call and what to do with them if people find one on the beach."

Whale spotters at Lighthouse Beach spotted 41 whales migrating north on Wednesday, June 5 and 52 travelling past on Thursday, June 7.

However as the date gets closer to June 30, more are expected.

"We can get 300 to 400 counted on census day in Port Macquarie, that's an average census day," said Mr Mansfield.

"Up here we get that and most places are lucky to get 100 whales.

"We'll be up here right from dawn to the crack of dusk if anyone wants to come up to Tacking Point Lighthouse.

"If they can't come to lighthouse you can go onto the ORRCA webpage and see how to register their name and numbers for any lookout along the coast."

ORRCA Census Day will be at Tacking Point Lighthouse on from 6am to 5pm on June 30.

Residents are encouraged to walk up from Tacking Point Surf Club due to the road being closed.

"It's very educational. Bring kids up and they can learn about whales and how to count them," said Mr Mansfield.

"Most of them will be humpback whales but being in Port Macquarie you also have a chance of seeing Bryde's whales, minke, false killer, killer whales and pygmy sperm whales.

"Hopefully it will be a nice sunny day. I would recommend to check the weather and bring a jacket, hat, sunscreen and something to eat."

If you see a stranded whale, dolphin or seal that needs rescuing you can call ORRCA's 24-four hour rescue line on (02) 9415 3333.

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